Serveur d'exploration H2N2

Attention, ce site est en cours de développement !
Attention, site généré par des moyens informatiques à partir de corpus bruts.
Les informations ne sont donc pas validées.

Influenza A in Bovine Species: A Narrative Literature Review

Identifieur interne : 000E41 ( Pmc/Corpus ); précédent : 000E40; suivant : 000E42

Influenza A in Bovine Species: A Narrative Literature Review

Auteurs : Chithra C. Sreenivasan ; Milton Thomas ; Radhey S. Kaushik ; Dan Wang ; Feng Li

Source :

RBID : PMC:6631717

Abstract

It is quite intriguing that bovines were largely unaffected by influenza A, even though most of the domesticated and wild animals/birds at the human–animal interface succumbed to infection over the past few decades. Influenza A occurs on a very infrequent basis in bovine species and hence bovines were not considered to be susceptible hosts for influenza until the emergence of influenza D. This review describes a multifaceted chronological review of literature on influenza in cattle which comprises mainly of the natural infections/outbreaks, experimental studies, and pathological and seroepidemiological aspects of influenza A that have occurred in the past. The review also sheds light on the bovine models used in vitro and in vivo for influenza-related studies over recent years. Despite a few natural cases in the mid-twentieth century and seroprevalence of human, swine, and avian influenza viruses in bovines, the evolution and host adaptation of influenza A virus (IAV) in this species suffered a serious hindrance until the novel influenza D virus (IDV) emerged recently in cattle across the world. Supposedly, certain bovine host factors, particularly some serum components and secretory proteins, were reported to have anti-influenza properties, which could be an attributing factor for the resilient nature of bovines to IAV. Further studies are needed to identify the host-specific factors contributing to the differential pathogenetic mechanisms and disease progression of IAV in bovines compared to other susceptible mammalian hosts.


Url:
DOI: 10.3390/v11060561
PubMed: 31213032
PubMed Central: 6631717

Links to Exploration step

PMC:6631717

Le document en format XML

<record>
<TEI>
<teiHeader>
<fileDesc>
<titleStmt>
<title xml:lang="en">Influenza A in Bovine Species: A Narrative Literature Review</title>
<author>
<name sortKey="Sreenivasan, Chithra C" sort="Sreenivasan, Chithra C" uniqKey="Sreenivasan C" first="Chithra C." last="Sreenivasan">Chithra C. Sreenivasan</name>
<affiliation>
<nlm:aff id="af1-viruses-11-00561">Department of Biology and Microbiology, South Dakota State University, Brookings, SD 57007, USA;
<email>chithra.sreenivasan@sdstate.edu</email>
(C.C.S.);
<email>radhey.kaushik@sdstate.edu</email>
(R.S.K.);
<email>dan.wang@sdstate.edu</email>
(D.W.)</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Thomas, Milton" sort="Thomas, Milton" uniqKey="Thomas M" first="Milton" last="Thomas">Milton Thomas</name>
<affiliation>
<nlm:aff id="af2-viruses-11-00561">Department of Veterinary and Biomedical Sciences, South Dakota State University, Brookings, SD 57007, USA;
<email>milton.thomas@sdstate.edu</email>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Kaushik, Radhey S" sort="Kaushik, Radhey S" uniqKey="Kaushik R" first="Radhey S." last="Kaushik">Radhey S. Kaushik</name>
<affiliation>
<nlm:aff id="af1-viruses-11-00561">Department of Biology and Microbiology, South Dakota State University, Brookings, SD 57007, USA;
<email>chithra.sreenivasan@sdstate.edu</email>
(C.C.S.);
<email>radhey.kaushik@sdstate.edu</email>
(R.S.K.);
<email>dan.wang@sdstate.edu</email>
(D.W.)</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Wang, Dan" sort="Wang, Dan" uniqKey="Wang D" first="Dan" last="Wang">Dan Wang</name>
<affiliation>
<nlm:aff id="af1-viruses-11-00561">Department of Biology and Microbiology, South Dakota State University, Brookings, SD 57007, USA;
<email>chithra.sreenivasan@sdstate.edu</email>
(C.C.S.);
<email>radhey.kaushik@sdstate.edu</email>
(R.S.K.);
<email>dan.wang@sdstate.edu</email>
(D.W.)</nlm:aff>
</affiliation>
<affiliation>
<nlm:aff id="af3-viruses-11-00561">BioSystems Networks and Translational Research Center (BioSNTR), Brookings, SD 57007, USA</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Li, Feng" sort="Li, Feng" uniqKey="Li F" first="Feng" last="Li">Feng Li</name>
<affiliation>
<nlm:aff id="af1-viruses-11-00561">Department of Biology and Microbiology, South Dakota State University, Brookings, SD 57007, USA;
<email>chithra.sreenivasan@sdstate.edu</email>
(C.C.S.);
<email>radhey.kaushik@sdstate.edu</email>
(R.S.K.);
<email>dan.wang@sdstate.edu</email>
(D.W.)</nlm:aff>
</affiliation>
<affiliation>
<nlm:aff id="af3-viruses-11-00561">BioSystems Networks and Translational Research Center (BioSNTR), Brookings, SD 57007, USA</nlm:aff>
</affiliation>
</author>
</titleStmt>
<publicationStmt>
<idno type="wicri:source">PMC</idno>
<idno type="pmid">31213032</idno>
<idno type="pmc">6631717</idno>
<idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6631717</idno>
<idno type="RBID">PMC:6631717</idno>
<idno type="doi">10.3390/v11060561</idno>
<date when="2019">2019</date>
<idno type="wicri:Area/Pmc/Corpus">000E41</idno>
<idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000E41</idno>
</publicationStmt>
<sourceDesc>
<biblStruct>
<analytic>
<title xml:lang="en" level="a" type="main">Influenza A in Bovine Species: A Narrative Literature Review</title>
<author>
<name sortKey="Sreenivasan, Chithra C" sort="Sreenivasan, Chithra C" uniqKey="Sreenivasan C" first="Chithra C." last="Sreenivasan">Chithra C. Sreenivasan</name>
<affiliation>
<nlm:aff id="af1-viruses-11-00561">Department of Biology and Microbiology, South Dakota State University, Brookings, SD 57007, USA;
<email>chithra.sreenivasan@sdstate.edu</email>
(C.C.S.);
<email>radhey.kaushik@sdstate.edu</email>
(R.S.K.);
<email>dan.wang@sdstate.edu</email>
(D.W.)</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Thomas, Milton" sort="Thomas, Milton" uniqKey="Thomas M" first="Milton" last="Thomas">Milton Thomas</name>
<affiliation>
<nlm:aff id="af2-viruses-11-00561">Department of Veterinary and Biomedical Sciences, South Dakota State University, Brookings, SD 57007, USA;
<email>milton.thomas@sdstate.edu</email>
</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Kaushik, Radhey S" sort="Kaushik, Radhey S" uniqKey="Kaushik R" first="Radhey S." last="Kaushik">Radhey S. Kaushik</name>
<affiliation>
<nlm:aff id="af1-viruses-11-00561">Department of Biology and Microbiology, South Dakota State University, Brookings, SD 57007, USA;
<email>chithra.sreenivasan@sdstate.edu</email>
(C.C.S.);
<email>radhey.kaushik@sdstate.edu</email>
(R.S.K.);
<email>dan.wang@sdstate.edu</email>
(D.W.)</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Wang, Dan" sort="Wang, Dan" uniqKey="Wang D" first="Dan" last="Wang">Dan Wang</name>
<affiliation>
<nlm:aff id="af1-viruses-11-00561">Department of Biology and Microbiology, South Dakota State University, Brookings, SD 57007, USA;
<email>chithra.sreenivasan@sdstate.edu</email>
(C.C.S.);
<email>radhey.kaushik@sdstate.edu</email>
(R.S.K.);
<email>dan.wang@sdstate.edu</email>
(D.W.)</nlm:aff>
</affiliation>
<affiliation>
<nlm:aff id="af3-viruses-11-00561">BioSystems Networks and Translational Research Center (BioSNTR), Brookings, SD 57007, USA</nlm:aff>
</affiliation>
</author>
<author>
<name sortKey="Li, Feng" sort="Li, Feng" uniqKey="Li F" first="Feng" last="Li">Feng Li</name>
<affiliation>
<nlm:aff id="af1-viruses-11-00561">Department of Biology and Microbiology, South Dakota State University, Brookings, SD 57007, USA;
<email>chithra.sreenivasan@sdstate.edu</email>
(C.C.S.);
<email>radhey.kaushik@sdstate.edu</email>
(R.S.K.);
<email>dan.wang@sdstate.edu</email>
(D.W.)</nlm:aff>
</affiliation>
<affiliation>
<nlm:aff id="af3-viruses-11-00561">BioSystems Networks and Translational Research Center (BioSNTR), Brookings, SD 57007, USA</nlm:aff>
</affiliation>
</author>
</analytic>
<series>
<title level="j">Viruses</title>
<idno type="eISSN">1999-4915</idno>
<imprint>
<date when="2019">2019</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
</fileDesc>
<profileDesc>
<textClass></textClass>
</profileDesc>
</teiHeader>
<front>
<div type="abstract" xml:lang="en">
<p>It is quite intriguing that bovines were largely unaffected by influenza A, even though most of the domesticated and wild animals/birds at the human–animal interface succumbed to infection over the past few decades. Influenza A occurs on a very infrequent basis in bovine species and hence bovines were not considered to be susceptible hosts for influenza until the emergence of influenza D. This review describes a multifaceted chronological review of literature on influenza in cattle which comprises mainly of the natural infections/outbreaks, experimental studies, and pathological and seroepidemiological aspects of influenza A that have occurred in the past. The review also sheds light on the bovine models used in vitro and in vivo for influenza-related studies over recent years. Despite a few natural cases in the mid-twentieth century and seroprevalence of human, swine, and avian influenza viruses in bovines, the evolution and host adaptation of influenza A virus (IAV) in this species suffered a serious hindrance until the novel influenza D virus (IDV) emerged recently in cattle across the world. Supposedly, certain bovine host factors, particularly some serum components and secretory proteins, were reported to have anti-influenza properties, which could be an attributing factor for the resilient nature of bovines to IAV. Further studies are needed to identify the host-specific factors contributing to the differential pathogenetic mechanisms and disease progression of IAV in bovines compared to other susceptible mammalian hosts.</p>
</div>
</front>
<back>
<div1 type="bibliography">
<listBibl>
<biblStruct>
<analytic>
<author>
<name sortKey="Potter, C W" uniqKey="Potter C">C.W. Potter</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Das, K" uniqKey="Das K">K. Das</name>
</author>
<author>
<name sortKey="Aramini, J M" uniqKey="Aramini J">J.M. Aramini</name>
</author>
<author>
<name sortKey="Ma, L C" uniqKey="Ma L">L.-C. Ma</name>
</author>
<author>
<name sortKey="Krug, R M" uniqKey="Krug R">R.M. Krug</name>
</author>
<author>
<name sortKey="Arnold, E" uniqKey="Arnold E">E. Arnold</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Richardson, J C" uniqKey="Richardson J">J.C. Richardson</name>
</author>
<author>
<name sortKey="Akkina, R K" uniqKey="Akkina R">R.K. Akkina</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Hutchinson, E C" uniqKey="Hutchinson E">E.C. Hutchinson</name>
</author>
<author>
<name sortKey="Charles, P D" uniqKey="Charles P">P.D. Charles</name>
</author>
<author>
<name sortKey="Hester, S S" uniqKey="Hester S">S.S. Hester</name>
</author>
<author>
<name sortKey="Thomas, B" uniqKey="Thomas B">B. Thomas</name>
</author>
<author>
<name sortKey="Trudgian, D" uniqKey="Trudgian D">D. Trudgian</name>
</author>
<author>
<name sortKey="Martinez Alonso, M" uniqKey="Martinez Alonso M">M. Martinez-Alonso</name>
</author>
<author>
<name sortKey="Fodor, E" uniqKey="Fodor E">E. Fodor</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Paragas, J" uniqKey="Paragas J">J. Paragas</name>
</author>
<author>
<name sortKey="Talon, J" uniqKey="Talon J">J. Talon</name>
</author>
<author>
<name sortKey="O Eill, R E" uniqKey="O Eill R">R.E. O’Neill</name>
</author>
<author>
<name sortKey="Anderson, D K" uniqKey="Anderson D">D.K. Anderson</name>
</author>
<author>
<name sortKey="Garcia Sastre, A" uniqKey="Garcia Sastre A">A. García-Sastre</name>
</author>
<author>
<name sortKey="Palese, P" uniqKey="Palese P">P. Palese</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Tong, S" uniqKey="Tong S">S. Tong</name>
</author>
<author>
<name sortKey="Li, Y" uniqKey="Li Y">Y. Li</name>
</author>
<author>
<name sortKey="Rivailler, P" uniqKey="Rivailler P">P. Rivailler</name>
</author>
<author>
<name sortKey="Conrardy, C" uniqKey="Conrardy C">C. Conrardy</name>
</author>
<author>
<name sortKey="Castillo, D A" uniqKey="Castillo D">D.A. Castillo</name>
</author>
<author>
<name sortKey="Chen, L M" uniqKey="Chen L">L.M. Chen</name>
</author>
<author>
<name sortKey="Recuenco, S" uniqKey="Recuenco S">S. Recuenco</name>
</author>
<author>
<name sortKey="Ellison, J A" uniqKey="Ellison J">J.A. Ellison</name>
</author>
<author>
<name sortKey="Davis, C T" uniqKey="Davis C">C.T. Davis</name>
</author>
<author>
<name sortKey="York, I A" uniqKey="York I">I.A. York</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Campos, A C A" uniqKey="Campos A">A.C.A. Campos</name>
</author>
<author>
<name sortKey="Goes, L G B" uniqKey="Goes L">L.G.B. Goes</name>
</author>
<author>
<name sortKey="Moreira Soto, A" uniqKey="Moreira Soto A">A. Moreira-Soto</name>
</author>
<author>
<name sortKey="De Carvalho, C" uniqKey="De Carvalho C">C. de Carvalho</name>
</author>
<author>
<name sortKey="Ambar, G" uniqKey="Ambar G">G. Ambar</name>
</author>
<author>
<name sortKey="Sander, A L" uniqKey="Sander A">A.L. Sander</name>
</author>
<author>
<name sortKey="Fischer, C" uniqKey="Fischer C">C. Fischer</name>
</author>
<author>
<name sortKey="Ruckert Da Rosa, A" uniqKey="Ruckert Da Rosa A">A. Ruckert da Rosa</name>
</author>
<author>
<name sortKey="Cardoso De Oliveira, D" uniqKey="Cardoso De Oliveira D">D. Cardoso de Oliveira</name>
</author>
<author>
<name sortKey="Kataoka, A P G" uniqKey="Kataoka A">A.P.G. Kataoka</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Palese, P" uniqKey="Palese P">P. Palese</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Berhane, Y" uniqKey="Berhane Y">Y. Berhane</name>
</author>
<author>
<name sortKey="Ojkic, D" uniqKey="Ojkic D">D. Ojkic</name>
</author>
<author>
<name sortKey="Neufeld, J" uniqKey="Neufeld J">J. Neufeld</name>
</author>
<author>
<name sortKey="Leith, M" uniqKey="Leith M">M. Leith</name>
</author>
<author>
<name sortKey="Hisanaga, T" uniqKey="Hisanaga T">T. Hisanaga</name>
</author>
<author>
<name sortKey="Kehler, H" uniqKey="Kehler H">H. Kehler</name>
</author>
<author>
<name sortKey="Ferencz, A" uniqKey="Ferencz A">A. Ferencz</name>
</author>
<author>
<name sortKey="Wojcinski, H" uniqKey="Wojcinski H">H. Wojcinski</name>
</author>
<author>
<name sortKey="Cottam Birt, C" uniqKey="Cottam Birt C">C. Cottam-Birt</name>
</author>
<author>
<name sortKey="Suderman, M" uniqKey="Suderman M">M. Suderman</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Campagnolo, E R" uniqKey="Campagnolo E">E.R. Campagnolo</name>
</author>
<author>
<name sortKey="Rankin, J T" uniqKey="Rankin J">J.T. Rankin</name>
</author>
<author>
<name sortKey="Daverio, S A" uniqKey="Daverio S">S.A. Daverio</name>
</author>
<author>
<name sortKey="Hunt, E A" uniqKey="Hunt E">E.A. Hunt</name>
</author>
<author>
<name sortKey="Lute, J R" uniqKey="Lute J">J.R. Lute</name>
</author>
<author>
<name sortKey="Tewari, D" uniqKey="Tewari D">D. Tewari</name>
</author>
<author>
<name sortKey="Acland, H M" uniqKey="Acland H">H.M. Acland</name>
</author>
<author>
<name sortKey="Ostrowski, S R" uniqKey="Ostrowski S">S.R. Ostrowski</name>
</author>
<author>
<name sortKey="Moll, M E" uniqKey="Moll M">M.E. Moll</name>
</author>
<author>
<name sortKey="Urdaneta, V V" uniqKey="Urdaneta V">V.V. Urdaneta</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Dundon, W G" uniqKey="Dundon W">W.G. Dundon</name>
</author>
<author>
<name sortKey="De Benedictis, P" uniqKey="De Benedictis P">P. De Benedictis</name>
</author>
<author>
<name sortKey="Viale, E" uniqKey="Viale E">E. Viale</name>
</author>
<author>
<name sortKey="Capua, I" uniqKey="Capua I">I. Capua</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Pasma, T" uniqKey="Pasma T">T. Pasma</name>
</author>
<author>
<name sortKey="Joseph, T" uniqKey="Joseph T">T. Joseph</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Sponseller, B A" uniqKey="Sponseller B">B.A. Sponseller</name>
</author>
<author>
<name sortKey="Strait, E" uniqKey="Strait E">E. Strait</name>
</author>
<author>
<name sortKey="Jergens, A" uniqKey="Jergens A">A. Jergens</name>
</author>
<author>
<name sortKey="Trujillo, J" uniqKey="Trujillo J">J. Trujillo</name>
</author>
<author>
<name sortKey="Harmon, K" uniqKey="Harmon K">K. Harmon</name>
</author>
<author>
<name sortKey="Koster, L" uniqKey="Koster L">L. Koster</name>
</author>
<author>
<name sortKey="Jenkins Moore, M" uniqKey="Jenkins Moore M">M. Jenkins-Moore</name>
</author>
<author>
<name sortKey="Killian, M" uniqKey="Killian M">M. Killian</name>
</author>
<author>
<name sortKey="Swenson, S" uniqKey="Swenson S">S. Swenson</name>
</author>
<author>
<name sortKey="Bender, H" uniqKey="Bender H">H. Bender</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Welsh, M D" uniqKey="Welsh M">M.D. Welsh</name>
</author>
<author>
<name sortKey="Baird, P M" uniqKey="Baird P">P.M. Baird</name>
</author>
<author>
<name sortKey="Guelbenzu Gonzalo, M P" uniqKey="Guelbenzu Gonzalo M">M.P. Guelbenzu-Gonzalo</name>
</author>
<author>
<name sortKey="Hanna, A" uniqKey="Hanna A">A. Hanna</name>
</author>
<author>
<name sortKey="Reid, S M" uniqKey="Reid S">S.M. Reid</name>
</author>
<author>
<name sortKey="Essen, S" uniqKey="Essen S">S. Essen</name>
</author>
<author>
<name sortKey="Russell, C" uniqKey="Russell C">C. Russell</name>
</author>
<author>
<name sortKey="Thomas, S" uniqKey="Thomas S">S. Thomas</name>
</author>
<author>
<name sortKey="Barrass, L" uniqKey="Barrass L">L. Barrass</name>
</author>
<author>
<name sortKey="Mcneilly, F" uniqKey="Mcneilly F">F. McNeilly</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Callan, R J" uniqKey="Callan R">R.J. Callan</name>
</author>
<author>
<name sortKey="Early, G" uniqKey="Early G">G. Early</name>
</author>
<author>
<name sortKey="Kida, H" uniqKey="Kida H">H. Kida</name>
</author>
<author>
<name sortKey="Hinshaw, V S" uniqKey="Hinshaw V">V.S. Hinshaw</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Hinshaw, V S" uniqKey="Hinshaw V">V.S. Hinshaw</name>
</author>
<author>
<name sortKey="Bean, W J" uniqKey="Bean W">W.J. Bean</name>
</author>
<author>
<name sortKey="Geraci, J" uniqKey="Geraci J">J. Geraci</name>
</author>
<author>
<name sortKey="Fiorelli, P" uniqKey="Fiorelli P">P. Fiorelli</name>
</author>
<author>
<name sortKey="Early, G" uniqKey="Early G">G. Early</name>
</author>
<author>
<name sortKey="Webster, R G" uniqKey="Webster R">R.G. Webster</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Lang, G" uniqKey="Lang G">G. Lang</name>
</author>
<author>
<name sortKey="Gagnon, A" uniqKey="Gagnon A">A. Gagnon</name>
</author>
<author>
<name sortKey="Geraci, J R" uniqKey="Geraci J">J.R. Geraci</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Vladimirtseva, E A" uniqKey="Vladimirtseva E">E.A. Vladimirtseva</name>
</author>
<author>
<name sortKey="Sadykhova, F" uniqKey="Sadykhova F">F. Sadykhova</name>
</author>
<author>
<name sortKey="Iamnikova, S S" uniqKey="Iamnikova S">S.S. Iamnikova</name>
</author>
<author>
<name sortKey="L Ov, D K" uniqKey="L Ov D">D.K. L’Vov</name>
</author>
<author>
<name sortKey="Zhdanov, V M" uniqKey="Zhdanov V">V.M. Zhdanov</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Taubenberger, J K" uniqKey="Taubenberger J">J.K. Taubenberger</name>
</author>
<author>
<name sortKey="Kash, J C" uniqKey="Kash J">J.C. Kash</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Alexander, P E" uniqKey="Alexander P">P.E. Alexander</name>
</author>
<author>
<name sortKey="De, P" uniqKey="De P">P. De</name>
</author>
<author>
<name sortKey="Rave, S" uniqKey="Rave S">S. Rave</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Taubenberger, J K" uniqKey="Taubenberger J">J.K. Taubenberger</name>
</author>
<author>
<name sortKey="Morens, D M" uniqKey="Morens D">D.M. Morens</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Wan, H" uniqKey="Wan H">H. Wan</name>
</author>
<author>
<name sortKey="Sorrell, E M" uniqKey="Sorrell E">E.M. Sorrell</name>
</author>
<author>
<name sortKey="Song, H" uniqKey="Song H">H. Song</name>
</author>
<author>
<name sortKey="Hossain, M J" uniqKey="Hossain M">M.J. Hossain</name>
</author>
<author>
<name sortKey="Ramirez Nieto, G" uniqKey="Ramirez Nieto G">G. Ramirez-Nieto</name>
</author>
<author>
<name sortKey="Monne, I" uniqKey="Monne I">I. Monne</name>
</author>
<author>
<name sortKey="Stevens, J" uniqKey="Stevens J">J. Stevens</name>
</author>
<author>
<name sortKey="Cattoli, G" uniqKey="Cattoli G">G. Cattoli</name>
</author>
<author>
<name sortKey="Capua, I" uniqKey="Capua I">I. Capua</name>
</author>
<author>
<name sortKey="Chen, L M" uniqKey="Chen L">L.M. Chen</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Cauldwell, A V" uniqKey="Cauldwell A">A.V. Cauldwell</name>
</author>
<author>
<name sortKey="Long, J S" uniqKey="Long J">J.S. Long</name>
</author>
<author>
<name sortKey="Moncorge, O" uniqKey="Moncorge O">O. Moncorge</name>
</author>
<author>
<name sortKey="Barclay, W S" uniqKey="Barclay W">W.S. Barclay</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Manz, B" uniqKey="Manz B">B. Manz</name>
</author>
<author>
<name sortKey="Schwemmle, M" uniqKey="Schwemmle M">M. Schwemmle</name>
</author>
<author>
<name sortKey="Brunotte, L" uniqKey="Brunotte L">L. Brunotte</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Busuioc, C" uniqKey="Busuioc C">C. Busuioc</name>
</author>
<author>
<name sortKey="Popovici, M" uniqKey="Popovici M">M. Popovici</name>
</author>
<author>
<name sortKey="Ionescu, V" uniqKey="Ionescu V">V. Ionescu</name>
</author>
<author>
<name sortKey="Stoicescu, A" uniqKey="Stoicescu A">A. Stoicescu</name>
</author>
<author>
<name sortKey="Scheau, A" uniqKey="Scheau A">A. Scheau</name>
</author>
<author>
<name sortKey="Cazacu, E" uniqKey="Cazacu E">E. Cazacu</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Cilli, V" uniqKey="Cilli V">V. Cilli</name>
</author>
<author>
<name sortKey="Davoli, R" uniqKey="Davoli R">R. Davoli</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Smetanin, M A" uniqKey="Smetanin M">M.A. Smetanin</name>
</author>
<author>
<name sortKey="Molibog, E V" uniqKey="Molibog E">E.V. Molibog</name>
</author>
<author>
<name sortKey="Borovik, R V" uniqKey="Borovik R">R.V. Borovik</name>
</author>
<author>
<name sortKey="Zakstel Kaia, L" uniqKey="Zakstel Kaia L">L. Zakstel’skaia</name>
</author>
<author>
<name sortKey="Isachenko, V A" uniqKey="Isachenko V">V.A. Isachenko</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Yoon, S W" uniqKey="Yoon S">S.W. Yoon</name>
</author>
<author>
<name sortKey="Webby, R J" uniqKey="Webby R">R.J. Webby</name>
</author>
<author>
<name sortKey="Webster, R G" uniqKey="Webster R">R.G. Webster</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Shope, R E" uniqKey="Shope R">R.E. Shope</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Webby, R J" uniqKey="Webby R">R.J. Webby</name>
</author>
<author>
<name sortKey="Swenson, S L" uniqKey="Swenson S">S.L. Swenson</name>
</author>
<author>
<name sortKey="Krauss, S L" uniqKey="Krauss S">S.L. Krauss</name>
</author>
<author>
<name sortKey="Gerrish, P J" uniqKey="Gerrish P">P.J. Gerrish</name>
</author>
<author>
<name sortKey="Goyal, S M" uniqKey="Goyal S">S.M. Goyal</name>
</author>
<author>
<name sortKey="Webster, R G" uniqKey="Webster R">R.G. Webster</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Zhou, N N" uniqKey="Zhou N">N.N. Zhou</name>
</author>
<author>
<name sortKey="Senne, D A" uniqKey="Senne D">D.A. Senne</name>
</author>
<author>
<name sortKey="Landgraf, J S" uniqKey="Landgraf J">J.S. Landgraf</name>
</author>
<author>
<name sortKey="Swenson, S L" uniqKey="Swenson S">S.L. Swenson</name>
</author>
<author>
<name sortKey="Erickson, G" uniqKey="Erickson G">G. Erickson</name>
</author>
<author>
<name sortKey="Rossow, K" uniqKey="Rossow K">K. Rossow</name>
</author>
<author>
<name sortKey="Liu, L" uniqKey="Liu L">L. Liu</name>
</author>
<author>
<name sortKey="Yoon, K" uniqKey="Yoon K">K. Yoon</name>
</author>
<author>
<name sortKey="Krauss, S" uniqKey="Krauss S">S. Krauss</name>
</author>
<author>
<name sortKey="Webster, R G" uniqKey="Webster R">R.G. Webster</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Vincent, A" uniqKey="Vincent A">A. Vincent</name>
</author>
<author>
<name sortKey="Awada, L" uniqKey="Awada L">L. Awada</name>
</author>
<author>
<name sortKey="Brown, I" uniqKey="Brown I">I. Brown</name>
</author>
<author>
<name sortKey="Chen, H" uniqKey="Chen H">H. Chen</name>
</author>
<author>
<name sortKey="Claes, F" uniqKey="Claes F">F. Claes</name>
</author>
<author>
<name sortKey="Dauphin, G" uniqKey="Dauphin G">G. Dauphin</name>
</author>
<author>
<name sortKey="Donis, R" uniqKey="Donis R">R. Donis</name>
</author>
<author>
<name sortKey="Culhane, M" uniqKey="Culhane M">M. Culhane</name>
</author>
<author>
<name sortKey="Hamilton, K" uniqKey="Hamilton K">K. Hamilton</name>
</author>
<author>
<name sortKey="Lewis, N" uniqKey="Lewis N">N. Lewis</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Webster, R G" uniqKey="Webster R">R.G. Webster</name>
</author>
<author>
<name sortKey="Thomas, T L" uniqKey="Thomas T">T.L. Thomas</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Hamed, M I" uniqKey="Hamed M">M.I. Hamed</name>
</author>
<author>
<name sortKey="Amen, O A K" uniqKey="Amen O">O.A.K. Amen</name>
</author>
<author>
<name sortKey="Rateb, H Z" uniqKey="Rateb H">H.Z. Rateb</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Feng, K H" uniqKey="Feng K">K.H. Feng</name>
</author>
<author>
<name sortKey="Gonzalez, G" uniqKey="Gonzalez G">G. Gonzalez</name>
</author>
<author>
<name sortKey="Deng, L" uniqKey="Deng L">L. Deng</name>
</author>
<author>
<name sortKey="Yu, H" uniqKey="Yu H">H. Yu</name>
</author>
<author>
<name sortKey="Tse, V L" uniqKey="Tse V">V.L. Tse</name>
</author>
<author>
<name sortKey="Huang, L" uniqKey="Huang L">L. Huang</name>
</author>
<author>
<name sortKey="Huang, K" uniqKey="Huang K">K. Huang</name>
</author>
<author>
<name sortKey="Wasik, B R" uniqKey="Wasik B">B.R. Wasik</name>
</author>
<author>
<name sortKey="Zhou, B" uniqKey="Zhou B">B. Zhou</name>
</author>
<author>
<name sortKey="Wentworth, D E" uniqKey="Wentworth D">D.E. Wentworth</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Zhu, H" uniqKey="Zhu H">H. Zhu</name>
</author>
<author>
<name sortKey="Hughes, J" uniqKey="Hughes J">J. Hughes</name>
</author>
<author>
<name sortKey="Murcia, P R" uniqKey="Murcia P">P.R. Murcia</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Bodewes, R" uniqKey="Bodewes R">R. Bodewes</name>
</author>
<author>
<name sortKey="Bestebroer, T M" uniqKey="Bestebroer T">T.M. Bestebroer</name>
</author>
<author>
<name sortKey="Van Der Vries, E" uniqKey="Van Der Vries E">E. van der Vries</name>
</author>
<author>
<name sortKey="Verhagen, J H" uniqKey="Verhagen J">J.H. Verhagen</name>
</author>
<author>
<name sortKey="Herfst, S" uniqKey="Herfst S">S. Herfst</name>
</author>
<author>
<name sortKey="Koopmans, M P" uniqKey="Koopmans M">M.P. Koopmans</name>
</author>
<author>
<name sortKey="Fouchier, R A" uniqKey="Fouchier R">R.A. Fouchier</name>
</author>
<author>
<name sortKey="Pfankuche, V M" uniqKey="Pfankuche V">V.M. Pfankuche</name>
</author>
<author>
<name sortKey="Wohlsein, P" uniqKey="Wohlsein P">P. Wohlsein</name>
</author>
<author>
<name sortKey="Siebert, U" uniqKey="Siebert U">U. Siebert</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Berg, M" uniqKey="Berg M">M. Berg</name>
</author>
<author>
<name sortKey="Englund, L" uniqKey="Englund L">L. Englund</name>
</author>
<author>
<name sortKey="Abusugra, I A" uniqKey="Abusugra I">I.A. Abusugra</name>
</author>
<author>
<name sortKey="Klingeborn, B" uniqKey="Klingeborn B">B. Klingeborn</name>
</author>
<author>
<name sortKey="Linne, T" uniqKey="Linne T">T. Linne</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Englund, L" uniqKey="Englund L">L. Englund</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Englund, L" uniqKey="Englund L">L. Englund</name>
</author>
<author>
<name sortKey="Klingeborn, B" uniqKey="Klingeborn B">B. Klingeborn</name>
</author>
<author>
<name sortKey="Mejerland, T" uniqKey="Mejerland T">T. Mejerland</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Feldmann, H" uniqKey="Feldmann H">H. Feldmann</name>
</author>
<author>
<name sortKey="Kretzschmar, E" uniqKey="Kretzschmar E">E. Kretzschmar</name>
</author>
<author>
<name sortKey="Klingeborn, B" uniqKey="Klingeborn B">B. Klingeborn</name>
</author>
<author>
<name sortKey="Rott, R" uniqKey="Rott R">R. Rott</name>
</author>
<author>
<name sortKey="Klenk, H D" uniqKey="Klenk H">H.D. Klenk</name>
</author>
<author>
<name sortKey="Garten, W" uniqKey="Garten W">W. Garten</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Peng, L" uniqKey="Peng L">L. Peng</name>
</author>
<author>
<name sortKey="Chen, C" uniqKey="Chen C">C. Chen</name>
</author>
<author>
<name sortKey="Kai Yi, H" uniqKey="Kai Yi H">H. Kai-yi</name>
</author>
<author>
<name sortKey="Feng Xia, Z" uniqKey="Feng Xia Z">Z. Feng-xia</name>
</author>
<author>
<name sortKey="Yan Li, Z" uniqKey="Yan Li Z">Z. Yan-li</name>
</author>
<author>
<name sortKey="Zong Shuai, L" uniqKey="Zong Shuai L">L. Zong-shuai</name>
</author>
<author>
<name sortKey="Xing Xiao, Z" uniqKey="Xing Xiao Z">Z. Xing-xiao</name>
</author>
<author>
<name sortKey="Shi Jin, J" uniqKey="Shi Jin J">J. Shi-jin</name>
</author>
<author>
<name sortKey="Zhi Jing, X" uniqKey="Zhi Jing X">X. Zhi-jing</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Tremblay, D" uniqKey="Tremblay D">D. Tremblay</name>
</author>
<author>
<name sortKey="Allard, V" uniqKey="Allard V">V. Allard</name>
</author>
<author>
<name sortKey="Doyon, J F" uniqKey="Doyon J">J.F. Doyon</name>
</author>
<author>
<name sortKey="Bellehumeur, C" uniqKey="Bellehumeur C">C. Bellehumeur</name>
</author>
<author>
<name sortKey="Spearman, J G" uniqKey="Spearman J">J.G. Spearman</name>
</author>
<author>
<name sortKey="Harel, J" uniqKey="Harel J">J. Harel</name>
</author>
<author>
<name sortKey="Gagnon, C A" uniqKey="Gagnon C">C.A. Gagnon</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Yoon, K J" uniqKey="Yoon K">K.J. Yoon</name>
</author>
<author>
<name sortKey="Schwartz, K" uniqKey="Schwartz K">K. Schwartz</name>
</author>
<author>
<name sortKey="Sun, D" uniqKey="Sun D">D. Sun</name>
</author>
<author>
<name sortKey="Zhang, J" uniqKey="Zhang J">J. Zhang</name>
</author>
<author>
<name sortKey="Hildebrandt, H" uniqKey="Hildebrandt H">H. Hildebrandt</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Fatkhuddinova, M F" uniqKey="Fatkhuddinova M">M.F. Fatkhuddinova</name>
</author>
<author>
<name sortKey="Kir Anova, A I" uniqKey="Kir Anova A">A.I. Kir’ianova</name>
</author>
<author>
<name sortKey="Isachenko, V A" uniqKey="Isachenko V">V.A. Isachenko</name>
</author>
<author>
<name sortKey="Zakstel Kaia, L" uniqKey="Zakstel Kaia L">L. Zakstel’skaia</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Tanyi, J" uniqKey="Tanyi J">J. Tanyi</name>
</author>
<author>
<name sortKey="Romvary, J" uniqKey="Romvary J">J. Romvary</name>
</author>
<author>
<name sortKey="Aldasy, P" uniqKey="Aldasy P">P. Aldasy</name>
</author>
<author>
<name sortKey="Mathe, Z" uniqKey="Mathe Z">Z. Mathe</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Lopez, J W" uniqKey="Lopez J">J.W. Lopez</name>
</author>
<author>
<name sortKey="Woods, G T" uniqKey="Woods G">G.T. Woods</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Campbell, C H" uniqKey="Campbell C">C.H. Campbell</name>
</author>
<author>
<name sortKey="Easterday, B C" uniqKey="Easterday B">B.C. Easterday</name>
</author>
<author>
<name sortKey="Webster, R G" uniqKey="Webster R">R.G. Webster</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Bodewes, R" uniqKey="Bodewes R">R. Bodewes</name>
</author>
<author>
<name sortKey="Morick, D" uniqKey="Morick D">D. Morick</name>
</author>
<author>
<name sortKey="De Mutsert, G" uniqKey="De Mutsert G">G. de Mutsert</name>
</author>
<author>
<name sortKey="Osinga, N" uniqKey="Osinga N">N. Osinga</name>
</author>
<author>
<name sortKey="Bestebroer, T" uniqKey="Bestebroer T">T. Bestebroer</name>
</author>
<author>
<name sortKey="Van Der Vliet, S" uniqKey="Van Der Vliet S">S. van der Vliet</name>
</author>
<author>
<name sortKey="Smits, S L" uniqKey="Smits S">S.L. Smits</name>
</author>
<author>
<name sortKey="Kuiken, T" uniqKey="Kuiken T">T. Kuiken</name>
</author>
<author>
<name sortKey="Rimmelzwaan, G F" uniqKey="Rimmelzwaan G">G.F. Rimmelzwaan</name>
</author>
<author>
<name sortKey="Fouchier, R A" uniqKey="Fouchier R">R.A. Fouchier</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Osterhaus, A D" uniqKey="Osterhaus A">A.D. Osterhaus</name>
</author>
<author>
<name sortKey="Rimmelzwaan, G F" uniqKey="Rimmelzwaan G">G.F. Rimmelzwaan</name>
</author>
<author>
<name sortKey="Martina, B E" uniqKey="Martina B">B.E. Martina</name>
</author>
<author>
<name sortKey="Bestebroer, T M" uniqKey="Bestebroer T">T.M. Bestebroer</name>
</author>
<author>
<name sortKey="Fouchier, R A" uniqKey="Fouchier R">R.A. Fouchier</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Paules, C" uniqKey="Paules C">C. Paules</name>
</author>
<author>
<name sortKey="Subbarao, K" uniqKey="Subbarao K">K. Subbarao</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Takatsy, G Y" uniqKey="Takatsy G">G.Y. Takatsy</name>
</author>
<author>
<name sortKey="Farkas, E" uniqKey="Farkas E">E. Farkas</name>
</author>
<author>
<name sortKey="Romvary, J" uniqKey="Romvary J">J. Romvary</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Ran, Z" uniqKey="Ran Z">Z. Ran</name>
</author>
<author>
<name sortKey="Shen, H" uniqKey="Shen H">H. Shen</name>
</author>
<author>
<name sortKey="Lang, Y" uniqKey="Lang Y">Y. Lang</name>
</author>
<author>
<name sortKey="Kolb, E A" uniqKey="Kolb E">E.A. Kolb</name>
</author>
<author>
<name sortKey="Turan, N" uniqKey="Turan N">N. Turan</name>
</author>
<author>
<name sortKey="Zhu, L" uniqKey="Zhu L">L. Zhu</name>
</author>
<author>
<name sortKey="Ma, J" uniqKey="Ma J">J. Ma</name>
</author>
<author>
<name sortKey="Bawa, B" uniqKey="Bawa B">B. Bawa</name>
</author>
<author>
<name sortKey="Liu, Q" uniqKey="Liu Q">Q. Liu</name>
</author>
<author>
<name sortKey="Liu, H" uniqKey="Liu H">H. Liu</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Chang, C P" uniqKey="Chang C">C.P. Chang</name>
</author>
<author>
<name sortKey="New, A E" uniqKey="New A">A.E. New</name>
</author>
<author>
<name sortKey="Taylor, J F" uniqKey="Taylor J">J.F. Taylor</name>
</author>
<author>
<name sortKey="Chiang, H S" uniqKey="Chiang H">H.S. Chiang</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Ditchfield, J" uniqKey="Ditchfield J">J. Ditchfield</name>
</author>
<author>
<name sortKey="Macpherson, L W" uniqKey="Macpherson L">L.W. Macpherson</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Kawano, J" uniqKey="Kawano J">J. Kawano</name>
</author>
<author>
<name sortKey="Onta, T" uniqKey="Onta T">T. Onta</name>
</author>
<author>
<name sortKey="Kida, H" uniqKey="Kida H">H. Kida</name>
</author>
<author>
<name sortKey="Yanagawa, R" uniqKey="Yanagawa R">R. Yanagawa</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Anton, A" uniqKey="Anton A">A. Anton</name>
</author>
<author>
<name sortKey="Marcos, M A" uniqKey="Marcos M">M.A. Marcos</name>
</author>
<author>
<name sortKey="Codoner, F M" uniqKey="Codoner F">F.M. Codoner</name>
</author>
<author>
<name sortKey="De Molina, P" uniqKey="De Molina P">P. de Molina</name>
</author>
<author>
<name sortKey="Martinez, A" uniqKey="Martinez A">A. Martinez</name>
</author>
<author>
<name sortKey="Cardenosa, N" uniqKey="Cardenosa N">N. Cardenosa</name>
</author>
<author>
<name sortKey="Godoy, P" uniqKey="Godoy P">P. Godoy</name>
</author>
<author>
<name sortKey="Torner, N" uniqKey="Torner N">N. Torner</name>
</author>
<author>
<name sortKey="Martinez, M J" uniqKey="Martinez M">M.J. Martinez</name>
</author>
<author>
<name sortKey="Ramon, S" uniqKey="Ramon S">S. Ramon</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Brown, I H" uniqKey="Brown I">I.H. Brown</name>
</author>
<author>
<name sortKey="Harris, P A" uniqKey="Harris P">P.A. Harris</name>
</author>
<author>
<name sortKey="Alexander, D J" uniqKey="Alexander D">D.J. Alexander</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Kimura, H" uniqKey="Kimura H">H. Kimura</name>
</author>
<author>
<name sortKey="Abiko, C" uniqKey="Abiko C">C. Abiko</name>
</author>
<author>
<name sortKey="Peng, G" uniqKey="Peng G">G. Peng</name>
</author>
<author>
<name sortKey="Muraki, Y" uniqKey="Muraki Y">Y. Muraki</name>
</author>
<author>
<name sortKey="Sugawara, K" uniqKey="Sugawara K">K. Sugawara</name>
</author>
<author>
<name sortKey="Hongo, S" uniqKey="Hongo S">S. Hongo</name>
</author>
<author>
<name sortKey="Kitame, F" uniqKey="Kitame F">F. Kitame</name>
</author>
<author>
<name sortKey="Mizuta, K" uniqKey="Mizuta K">K. Mizuta</name>
</author>
<author>
<name sortKey="Numazaki, Y" uniqKey="Numazaki Y">Y. Numazaki</name>
</author>
<author>
<name sortKey="Suzuki, H" uniqKey="Suzuki H">H. Suzuki</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Guo, Y J" uniqKey="Guo Y">Y.J. Guo</name>
</author>
<author>
<name sortKey="Jin, F G" uniqKey="Jin F">F.G. Jin</name>
</author>
<author>
<name sortKey="Wang, P" uniqKey="Wang P">P. Wang</name>
</author>
<author>
<name sortKey="Wang, M" uniqKey="Wang M">M. Wang</name>
</author>
<author>
<name sortKey="Zhu, J M" uniqKey="Zhu J">J.M. Zhu</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Nedland, H" uniqKey="Nedland H">H. Nedland</name>
</author>
<author>
<name sortKey="Wollman, J" uniqKey="Wollman J">J. Wollman</name>
</author>
<author>
<name sortKey="Sreenivasan, C" uniqKey="Sreenivasan C">C. Sreenivasan</name>
</author>
<author>
<name sortKey="Quast, M" uniqKey="Quast M">M. Quast</name>
</author>
<author>
<name sortKey="Singrey, A" uniqKey="Singrey A">A. Singrey</name>
</author>
<author>
<name sortKey="Fawcett, L" uniqKey="Fawcett L">L. Fawcett</name>
</author>
<author>
<name sortKey="Christopher Hennings, J" uniqKey="Christopher Hennings J">J. Christopher-Hennings</name>
</author>
<author>
<name sortKey="Nelson, E" uniqKey="Nelson E">E. Nelson</name>
</author>
<author>
<name sortKey="Kaushik, R S" uniqKey="Kaushik R">R.S. Kaushik</name>
</author>
<author>
<name sortKey="Wang, D" uniqKey="Wang D">D. Wang</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Zhang, H" uniqKey="Zhang H">H. Zhang</name>
</author>
<author>
<name sortKey="Porter, E" uniqKey="Porter E">E. Porter</name>
</author>
<author>
<name sortKey="Lohman, M" uniqKey="Lohman M">M. Lohman</name>
</author>
<author>
<name sortKey="Lu, N" uniqKey="Lu N">N. Lu</name>
</author>
<author>
<name sortKey="Peddireddi, L" uniqKey="Peddireddi L">L. Peddireddi</name>
</author>
<author>
<name sortKey="Hanzlicek, G" uniqKey="Hanzlicek G">G. Hanzlicek</name>
</author>
<author>
<name sortKey="Marthaler, D" uniqKey="Marthaler D">D. Marthaler</name>
</author>
<author>
<name sortKey="Liu, X" uniqKey="Liu X">X. Liu</name>
</author>
<author>
<name sortKey="Bai, J" uniqKey="Bai J">J. Bai</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Zhang, M" uniqKey="Zhang M">M. Zhang</name>
</author>
<author>
<name sortKey="Hill, J E" uniqKey="Hill J">J.E. Hill</name>
</author>
<author>
<name sortKey="Fernando, C" uniqKey="Fernando C">C. Fernando</name>
</author>
<author>
<name sortKey="Alexander, T W" uniqKey="Alexander T">T.W. Alexander</name>
</author>
<author>
<name sortKey="Timsit, E" uniqKey="Timsit E">E. Timsit</name>
</author>
<author>
<name sortKey="Van Der Meer, F" uniqKey="Van Der Meer F">F. van der Meer</name>
</author>
<author>
<name sortKey="Huang, Y" uniqKey="Huang Y">Y. Huang</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Ferguson, L" uniqKey="Ferguson L">L. Ferguson</name>
</author>
<author>
<name sortKey="Eckard, L" uniqKey="Eckard L">L. Eckard</name>
</author>
<author>
<name sortKey="Epperson, W B" uniqKey="Epperson W">W.B. Epperson</name>
</author>
<author>
<name sortKey="Long, L P" uniqKey="Long L">L.P. Long</name>
</author>
<author>
<name sortKey="Smith, D" uniqKey="Smith D">D. Smith</name>
</author>
<author>
<name sortKey="Huston, C" uniqKey="Huston C">C. Huston</name>
</author>
<author>
<name sortKey="Genova, S" uniqKey="Genova S">S. Genova</name>
</author>
<author>
<name sortKey="Webby, R" uniqKey="Webby R">R. Webby</name>
</author>
<author>
<name sortKey="Wan, X F" uniqKey="Wan X">X.F. Wan</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Hause, B M" uniqKey="Hause B">B.M. Hause</name>
</author>
<author>
<name sortKey="Ducatez, M" uniqKey="Ducatez M">M. Ducatez</name>
</author>
<author>
<name sortKey="Collin, E A" uniqKey="Collin E">E.A. Collin</name>
</author>
<author>
<name sortKey="Ran, Z" uniqKey="Ran Z">Z. Ran</name>
</author>
<author>
<name sortKey="Liu, R" uniqKey="Liu R">R. Liu</name>
</author>
<author>
<name sortKey="Sheng, Z" uniqKey="Sheng Z">Z. Sheng</name>
</author>
<author>
<name sortKey="Armien, A" uniqKey="Armien A">A. Armien</name>
</author>
<author>
<name sortKey="Kaplan, B" uniqKey="Kaplan B">B. Kaplan</name>
</author>
<author>
<name sortKey="Chakravarty, S" uniqKey="Chakravarty S">S. Chakravarty</name>
</author>
<author>
<name sortKey="Hoppe, A D" uniqKey="Hoppe A">A.D. Hoppe</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Luo, J" uniqKey="Luo J">J. Luo</name>
</author>
<author>
<name sortKey="Ferguson, L" uniqKey="Ferguson L">L. Ferguson</name>
</author>
<author>
<name sortKey="Smith, D R" uniqKey="Smith D">D.R. Smith</name>
</author>
<author>
<name sortKey="Woolums, A R" uniqKey="Woolums A">A.R. Woolums</name>
</author>
<author>
<name sortKey="Epperson, W B" uniqKey="Epperson W">W.B. Epperson</name>
</author>
<author>
<name sortKey="Wan, X F" uniqKey="Wan X">X.F. Wan</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Murakami, S" uniqKey="Murakami S">S. Murakami</name>
</author>
<author>
<name sortKey="Endoh, M" uniqKey="Endoh M">M. Endoh</name>
</author>
<author>
<name sortKey="Kobayashi, T" uniqKey="Kobayashi T">T. Kobayashi</name>
</author>
<author>
<name sortKey="Takenaka Uema, A" uniqKey="Takenaka Uema A">A. Takenaka-Uema</name>
</author>
<author>
<name sortKey="Chambers, J K" uniqKey="Chambers J">J.K. Chambers</name>
</author>
<author>
<name sortKey="Uchida, K" uniqKey="Uchida K">K. Uchida</name>
</author>
<author>
<name sortKey="Nishihara, M" uniqKey="Nishihara M">M. Nishihara</name>
</author>
<author>
<name sortKey="Hause, B" uniqKey="Hause B">B. Hause</name>
</author>
<author>
<name sortKey="Horimoto, T" uniqKey="Horimoto T">T. Horimoto</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Snoeck, C J" uniqKey="Snoeck C">C.J. Snoeck</name>
</author>
<author>
<name sortKey="Oliva, J" uniqKey="Oliva J">J. Oliva</name>
</author>
<author>
<name sortKey="Pauly, M" uniqKey="Pauly M">M. Pauly</name>
</author>
<author>
<name sortKey="Losch, S" uniqKey="Losch S">S. Losch</name>
</author>
<author>
<name sortKey="Wildschutz, F" uniqKey="Wildschutz F">F. Wildschutz</name>
</author>
<author>
<name sortKey="Muller, C P" uniqKey="Muller C">C.P. Muller</name>
</author>
<author>
<name sortKey="Hubschen, J M" uniqKey="Hubschen J">J.M. Hubschen</name>
</author>
<author>
<name sortKey="Ducatez, M F" uniqKey="Ducatez M">M.F. Ducatez</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Ferguson, L" uniqKey="Ferguson L">L. Ferguson</name>
</author>
<author>
<name sortKey="Luo, K" uniqKey="Luo K">K. Luo</name>
</author>
<author>
<name sortKey="Olivier, A K" uniqKey="Olivier A">A.K. Olivier</name>
</author>
<author>
<name sortKey="Cunningham, F L" uniqKey="Cunningham F">F.L. Cunningham</name>
</author>
<author>
<name sortKey="Blackmon, S" uniqKey="Blackmon S">S. Blackmon</name>
</author>
<author>
<name sortKey="Hanson Dorr, K" uniqKey="Hanson Dorr K">K. Hanson-Dorr</name>
</author>
<author>
<name sortKey="Sun, H" uniqKey="Sun H">H. Sun</name>
</author>
<author>
<name sortKey="Baroch, J" uniqKey="Baroch J">J. Baroch</name>
</author>
<author>
<name sortKey="Lutman, M W" uniqKey="Lutman M">M.W. Lutman</name>
</author>
<author>
<name sortKey="Quade, B" uniqKey="Quade B">B. Quade</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Quast, M" uniqKey="Quast M">M. Quast</name>
</author>
<author>
<name sortKey="Sreenivasan, C" uniqKey="Sreenivasan C">C. Sreenivasan</name>
</author>
<author>
<name sortKey="Sexton, G" uniqKey="Sexton G">G. Sexton</name>
</author>
<author>
<name sortKey="Nedland, H" uniqKey="Nedland H">H. Nedland</name>
</author>
<author>
<name sortKey="Singrey, A" uniqKey="Singrey A">A. Singrey</name>
</author>
<author>
<name sortKey="Fawcett, L" uniqKey="Fawcett L">L. Fawcett</name>
</author>
<author>
<name sortKey="Miller, G" uniqKey="Miller G">G. Miller</name>
</author>
<author>
<name sortKey="Lauer, D" uniqKey="Lauer D">D. Lauer</name>
</author>
<author>
<name sortKey="Voss, S" uniqKey="Voss S">S. Voss</name>
</author>
<author>
<name sortKey="Pollock, S" uniqKey="Pollock S">S. Pollock</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="White, S K" uniqKey="White S">S.K. White</name>
</author>
<author>
<name sortKey="Ma, W" uniqKey="Ma W">W. Ma</name>
</author>
<author>
<name sortKey="Mcdaniel, C J" uniqKey="Mcdaniel C">C.J. McDaniel</name>
</author>
<author>
<name sortKey="Gray, G C" uniqKey="Gray G">G.C. Gray</name>
</author>
<author>
<name sortKey="Lednicky, J A" uniqKey="Lednicky J">J.A. Lednicky</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Borkenhagen, L K" uniqKey="Borkenhagen L">L.K. Borkenhagen</name>
</author>
<author>
<name sortKey="Mallinson, K A" uniqKey="Mallinson K">K.A. Mallinson</name>
</author>
<author>
<name sortKey="Tsao, R W" uniqKey="Tsao R">R.W. Tsao</name>
</author>
<author>
<name sortKey="Ha, S J" uniqKey="Ha S">S.J. Ha</name>
</author>
<author>
<name sortKey="Lim, W H" uniqKey="Lim W">W.H. Lim</name>
</author>
<author>
<name sortKey="Toh, T H" uniqKey="Toh T">T.H. Toh</name>
</author>
<author>
<name sortKey="Anderson, B D" uniqKey="Anderson B">B.D. Anderson</name>
</author>
<author>
<name sortKey="Fieldhouse, J K" uniqKey="Fieldhouse J">J.K. Fieldhouse</name>
</author>
<author>
<name sortKey="Philo, S E" uniqKey="Philo S">S.E. Philo</name>
</author>
<author>
<name sortKey="Chong, K S" uniqKey="Chong K">K.S. Chong</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Choi, J Y" uniqKey="Choi J">J.Y. Choi</name>
</author>
<author>
<name sortKey="Zemke, J" uniqKey="Zemke J">J. Zemke</name>
</author>
<author>
<name sortKey="Philo, S E" uniqKey="Philo S">S.E. Philo</name>
</author>
<author>
<name sortKey="Bailey, E S" uniqKey="Bailey E">E.S. Bailey</name>
</author>
<author>
<name sortKey="Yondon, M" uniqKey="Yondon M">M. Yondon</name>
</author>
<author>
<name sortKey="Gray, G C" uniqKey="Gray G">G.C. Gray</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Bollongino, R" uniqKey="Bollongino R">R. Bollongino</name>
</author>
<author>
<name sortKey="Burger, J" uniqKey="Burger J">J. Burger</name>
</author>
<author>
<name sortKey="Powell, A" uniqKey="Powell A">A. Powell</name>
</author>
<author>
<name sortKey="Mashkour, M" uniqKey="Mashkour M">M. Mashkour</name>
</author>
<author>
<name sortKey="Vigne, J D" uniqKey="Vigne J">J.D. Vigne</name>
</author>
<author>
<name sortKey="Thomas, M G" uniqKey="Thomas M">M.G. Thomas</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Giuffra, E" uniqKey="Giuffra E">E. Giuffra</name>
</author>
<author>
<name sortKey="Kijas, J M" uniqKey="Kijas J">J.M. Kijas</name>
</author>
<author>
<name sortKey="Amarger, V" uniqKey="Amarger V">V. Amarger</name>
</author>
<author>
<name sortKey="Carlborg, O" uniqKey="Carlborg O">O. Carlborg</name>
</author>
<author>
<name sortKey="Jeon, J T" uniqKey="Jeon J">J.T. Jeon</name>
</author>
<author>
<name sortKey="Andersson, L" uniqKey="Andersson L">L. Andersson</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Saito, K" uniqKey="Saito K">K. Saito</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Reisinger, R C" uniqKey="Reisinger R">R.C. Reisinger</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Hoerlein, A B" uniqKey="Hoerlein A">A.B. Hoerlein</name>
</author>
<author>
<name sortKey="Mansfield, M E" uniqKey="Mansfield M">M.E. Mansfield</name>
</author>
<author>
<name sortKey="Abinanti, F R" uniqKey="Abinanti F">F.R. Abinanti</name>
</author>
<author>
<name sortKey="Huebner, R J" uniqKey="Huebner R">R.J. Huebner</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Madin, S H" uniqKey="Madin S">S.H. Madin</name>
</author>
<author>
<name sortKey="Mckercher, D G" uniqKey="Mckercher D">D.G. McKercher</name>
</author>
<author>
<name sortKey="York, C J" uniqKey="York C">C.J. York</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Noice, F" uniqKey="Noice F">F. Noice</name>
</author>
<author>
<name sortKey="Schipper, I A" uniqKey="Schipper I">I.A. Schipper</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Paccaud, M F" uniqKey="Paccaud M">M.F. Paccaud</name>
</author>
<author>
<name sortKey="Jacquier, C" uniqKey="Jacquier C">C. Jacquier</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Pritchard, W R" uniqKey="Pritchard W">W.R. Pritchard</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Schiott, C R" uniqKey="Schiott C">C.R. Schiott</name>
</author>
<author>
<name sortKey="Jensen, C H" uniqKey="Jensen C">C.H. Jensen</name>
</author>
</analytic>
</biblStruct>
<biblStruct></biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Mitra, N" uniqKey="Mitra N">N. Mitra</name>
</author>
<author>
<name sortKey="Cernicchiaro, N" uniqKey="Cernicchiaro N">N. Cernicchiaro</name>
</author>
<author>
<name sortKey="Torres, S" uniqKey="Torres S">S. Torres</name>
</author>
<author>
<name sortKey="Li, F" uniqKey="Li F">F. Li</name>
</author>
<author>
<name sortKey="Hause, B M" uniqKey="Hause B">B.M. Hause</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Zhang, H" uniqKey="Zhang H">H. Zhang</name>
</author>
<author>
<name sortKey="Porter, E P" uniqKey="Porter E">E.P. Porter</name>
</author>
<author>
<name sortKey="Lohman, M" uniqKey="Lohman M">M. Lohman</name>
</author>
<author>
<name sortKey="Lu, N" uniqKey="Lu N">N. Lu</name>
</author>
<author>
<name sortKey="Peddireddi, L" uniqKey="Peddireddi L">L. Peddireddi</name>
</author>
<author>
<name sortKey="Hanzlicek, G" uniqKey="Hanzlicek G">G. Hanzlicek</name>
</author>
<author>
<name sortKey="Marthaler, D" uniqKey="Marthaler D">D. Marthaler</name>
</author>
<author>
<name sortKey="Liu, X" uniqKey="Liu X">X. Liu</name>
</author>
<author>
<name sortKey="Bai, J" uniqKey="Bai J">J. Bai</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Hause, B M" uniqKey="Hause B">B.M. Hause</name>
</author>
<author>
<name sortKey="Collin, E A" uniqKey="Collin E">E.A. Collin</name>
</author>
<author>
<name sortKey="Liu, R" uniqKey="Liu R">R. Liu</name>
</author>
<author>
<name sortKey="Huang, B" uniqKey="Huang B">B. Huang</name>
</author>
<author>
<name sortKey="Sheng, Z" uniqKey="Sheng Z">Z. Sheng</name>
</author>
<author>
<name sortKey="Lu, W" uniqKey="Lu W">W. Lu</name>
</author>
<author>
<name sortKey="Wang, D" uniqKey="Wang D">D. Wang</name>
</author>
<author>
<name sortKey="Nelson, E A" uniqKey="Nelson E">E.A. Nelson</name>
</author>
<author>
<name sortKey="Li, F" uniqKey="Li F">F. Li</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Romvary, J" uniqKey="Romvary J">J. Romvary</name>
</author>
<author>
<name sortKey="Takatsy, G" uniqKey="Takatsy G">G. Takatsy</name>
</author>
<author>
<name sortKey="Barb, K" uniqKey="Barb K">K. Barb</name>
</author>
<author>
<name sortKey="Farkas, E" uniqKey="Farkas E">E. Farkas</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Isachenko, V A" uniqKey="Isachenko V">V.A. Isachenko</name>
</author>
<author>
<name sortKey="Molibog, E V" uniqKey="Molibog E">E.V. Molibog</name>
</author>
<author>
<name sortKey="Zakstel Kaia, L" uniqKey="Zakstel Kaia L">L. Zakstel’skaia</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Izmailov, I A" uniqKey="Izmailov I">I.A. Izmailov</name>
</author>
<author>
<name sortKey="Atamas, V A" uniqKey="Atamas V">V.A. Atamas</name>
</author>
<author>
<name sortKey="Kniazeva, N I" uniqKey="Kniazeva N">N.I. Kniazeva</name>
</author>
<author>
<name sortKey="Petrova, M S" uniqKey="Petrova M">M.S. Petrova</name>
</author>
<author>
<name sortKey="Kaimakan, P V" uniqKey="Kaimakan P">P.V. Kaimakan</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Koval Huk Ivaniuk, T V" uniqKey="Koval Huk Ivaniuk T">T.V. Koval’chuk-Ivaniuk</name>
</author>
<author>
<name sortKey="Stel Akh, S G" uniqKey="Stel Akh S">S.G. Stel’makh</name>
</author>
<author>
<name sortKey="Shablovskaia, E A" uniqKey="Shablovskaia E">E.A. Shablovskaia</name>
</author>
<author>
<name sortKey="Repko, A N" uniqKey="Repko A">A.N. Repko</name>
</author>
<author>
<name sortKey="Zlonkevich Ia, D" uniqKey="Zlonkevich Ia D">D. Zlonkevich Ia</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Smetain, M A" uniqKey="Smetain M">M.A. Smetain</name>
</author>
<author>
<name sortKey="Gaffarov Kh, Z" uniqKey="Gaffarov Kh Z">Z. Gaffarov Kh</name>
</author>
<author>
<name sortKey="Vakhrameev, V I" uniqKey="Vakhrameev V">V.I. Vakhrameev</name>
</author>
<author>
<name sortKey="Egorchev, I V" uniqKey="Egorchev I">I.V. Egorchev</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Wagner, K" uniqKey="Wagner K">K. Wagner</name>
</author>
<author>
<name sortKey="Becker, W" uniqKey="Becker W">W. Becker</name>
</author>
<author>
<name sortKey="Bromel, J" uniqKey="Bromel J">J. Bromel</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Sabisch, G" uniqKey="Sabisch G">G. Sabisch</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Gunning, R F" uniqKey="Gunning R">R.F. Gunning</name>
</author>
<author>
<name sortKey="Pritchard, G C" uniqKey="Pritchard G">G.C. Pritchard</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Brown, I H" uniqKey="Brown I">I.H. Brown</name>
</author>
<author>
<name sortKey="Crawshaw, T R" uniqKey="Crawshaw T">T.R. Crawshaw</name>
</author>
<author>
<name sortKey="Harris, P A" uniqKey="Harris P">P.A. Harris</name>
</author>
<author>
<name sortKey="Alexander, D J" uniqKey="Alexander D">D.J. Alexander</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Crawshaw, T R" uniqKey="Crawshaw T">T.R. Crawshaw</name>
</author>
<author>
<name sortKey="Brown, I" uniqKey="Brown I">I. Brown</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Gunning, R F" uniqKey="Gunning R">R.F. Gunning</name>
</author>
<author>
<name sortKey="Brown, I H" uniqKey="Brown I">I.H. Brown</name>
</author>
<author>
<name sortKey="Crawshaw, T R" uniqKey="Crawshaw T">T.R. Crawshaw</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Graham, D A" uniqKey="Graham D">D.A. Graham</name>
</author>
<author>
<name sortKey="Calvert, V" uniqKey="Calvert V">V. Calvert</name>
</author>
<author>
<name sortKey="Mclaren, E" uniqKey="Mclaren E">E. McLaren</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Crawshaw, T R" uniqKey="Crawshaw T">T.R. Crawshaw</name>
</author>
<author>
<name sortKey="Brown, I H" uniqKey="Brown I">I.H. Brown</name>
</author>
<author>
<name sortKey="Essen, S C" uniqKey="Essen S">S.C. Essen</name>
</author>
<author>
<name sortKey="Young, S C" uniqKey="Young S">S.C. Young</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Szeredi, L" uniqKey="Szeredi L">L. Szeredi</name>
</author>
<author>
<name sortKey="Janosi, S" uniqKey="Janosi S">S. Janosi</name>
</author>
<author>
<name sortKey="Palfi, V" uniqKey="Palfi V">V. Palfi</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Simpson, V R" uniqKey="Simpson V">V.R. Simpson</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Graves, I L" uniqKey="Graves I">I.L. Graves</name>
</author>
<author>
<name sortKey="Pyakural, S" uniqKey="Pyakural S">S. Pyakural</name>
</author>
<author>
<name sortKey="Sousa, V O" uniqKey="Sousa V">V.O. Sousa</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Boyle, D B" uniqKey="Boyle D">D.B. Boyle</name>
</author>
<author>
<name sortKey="Coupar, B E" uniqKey="Coupar B">B.E. Coupar</name>
</author>
<author>
<name sortKey="Parsonson, I M" uniqKey="Parsonson I">I.M. Parsonson</name>
</author>
<author>
<name sortKey="Bagust, T J" uniqKey="Bagust T">T.J. Bagust</name>
</author>
<author>
<name sortKey="Both, G W" uniqKey="Both G">G.W. Both</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Lopez, J W" uniqKey="Lopez J">J.W. Lopez</name>
</author>
<author>
<name sortKey="Woods, G T" uniqKey="Woods G">G.T. Woods</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Kalthoff, D" uniqKey="Kalthoff D">D. Kalthoff</name>
</author>
<author>
<name sortKey="Hoffmann, B" uniqKey="Hoffmann B">B. Hoffmann</name>
</author>
<author>
<name sortKey="Harder, T" uniqKey="Harder T">T. Harder</name>
</author>
<author>
<name sortKey="Durban, M" uniqKey="Durban M">M. Durban</name>
</author>
<author>
<name sortKey="Beer, M" uniqKey="Beer M">M. Beer</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Phuong Do, Q" uniqKey="Phuong Do Q">Q. Phuong do</name>
</author>
<author>
<name sortKey="Dung, N T" uniqKey="Dung N">N.T. Dung</name>
</author>
<author>
<name sortKey="Jorgensen, P H" uniqKey="Jorgensen P">P.H. Jorgensen</name>
</author>
<author>
<name sortKey="Van, D T" uniqKey="Van D">D.T. Van</name>
</author>
<author>
<name sortKey="Tung, D D" uniqKey="Tung D">D.D. Tung</name>
</author>
<author>
<name sortKey="Christensen, J P" uniqKey="Christensen J">J.P. Christensen</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Francis, M E" uniqKey="Francis M">M.E. Francis</name>
</author>
<author>
<name sortKey="King, M L" uniqKey="King M">M.L. King</name>
</author>
<author>
<name sortKey="Kelvin, A A" uniqKey="Kelvin A">A.A. Kelvin</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Kilbourne, E D" uniqKey="Kilbourne E">E.D. Kilbourne</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Nakamura, R M" uniqKey="Nakamura R">R.M. Nakamura</name>
</author>
<author>
<name sortKey="Easterday, B C" uniqKey="Easterday B">B.C. Easterday</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Onta, T" uniqKey="Onta T">T. Onta</name>
</author>
<author>
<name sortKey="Kida, H" uniqKey="Kida H">H. Kida</name>
</author>
<author>
<name sortKey="Kawano, J" uniqKey="Kawano J">J. Kawano</name>
</author>
<author>
<name sortKey="Matsuoka, Y" uniqKey="Matsuoka Y">Y. Matsuoka</name>
</author>
<author>
<name sortKey="Yanagawa, R" uniqKey="Yanagawa R">R. Yanagawa</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Saunders Hastings, P R" uniqKey="Saunders Hastings P">P.R. Saunders-Hastings</name>
</author>
<author>
<name sortKey="Krewski, D" uniqKey="Krewski D">D. Krewski</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Smith, G J" uniqKey="Smith G">G.J. Smith</name>
</author>
<author>
<name sortKey="Bahl, J" uniqKey="Bahl J">J. Bahl</name>
</author>
<author>
<name sortKey="Vijaykrishna, D" uniqKey="Vijaykrishna D">D. Vijaykrishna</name>
</author>
<author>
<name sortKey="Zhang, J" uniqKey="Zhang J">J. Zhang</name>
</author>
<author>
<name sortKey="Poon, L L" uniqKey="Poon L">L.L. Poon</name>
</author>
<author>
<name sortKey="Chen, H" uniqKey="Chen H">H. Chen</name>
</author>
<author>
<name sortKey="Webster, R G" uniqKey="Webster R">R.G. Webster</name>
</author>
<author>
<name sortKey="Peiris, J S" uniqKey="Peiris J">J.S. Peiris</name>
</author>
<author>
<name sortKey="Guan, Y" uniqKey="Guan Y">Y. Guan</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Jones Lang, K" uniqKey="Jones Lang K">K. Jones-Lang</name>
</author>
<author>
<name sortKey="Ernst Larson, M" uniqKey="Ernst Larson M">M. Ernst-Larson</name>
</author>
<author>
<name sortKey="Lee, B" uniqKey="Lee B">B. Lee</name>
</author>
<author>
<name sortKey="Goyal, S M" uniqKey="Goyal S">S.M. Goyal</name>
</author>
<author>
<name sortKey="Bey, R" uniqKey="Bey R">R. Bey</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Mitchell, C A" uniqKey="Mitchell C">C.A. Mitchell</name>
</author>
<author>
<name sortKey="Walker, R V" uniqKey="Walker R">R.V. Walker</name>
</author>
<author>
<name sortKey="Bannister, G L" uniqKey="Bannister G">G.L. Bannister</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Moustafa, M E S" uniqKey="Moustafa M">M.E.-S. Moustafa</name>
</author>
<author>
<name sortKey="Basem, M A" uniqKey="Basem M">M.A. Basem</name>
</author>
<author>
<name sortKey="Ahmed, A E S" uniqKey="Ahmed A">A.E.-S. Ahmed</name>
</author>
<author>
<name sortKey="Youssef, I Y" uniqKey="Youssef I">I.Y. Youssef</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Lin, C" uniqKey="Lin C">C. Lin</name>
</author>
<author>
<name sortKey="Holland, R E" uniqKey="Holland R">R.E. Holland</name>
</author>
<author>
<name sortKey="Mccoy, M H" uniqKey="Mccoy M">M.H. McCoy</name>
</author>
<author>
<name sortKey="Donofrio Newman, J" uniqKey="Donofrio Newman J">J. Donofrio-Newman</name>
</author>
<author>
<name sortKey="Vickers, M L" uniqKey="Vickers M">M.L. Vickers</name>
</author>
<author>
<name sortKey="Chambers, T M" uniqKey="Chambers T">T.M. Chambers</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Bronitki, A" uniqKey="Bronitki A">A. Bronitki</name>
</author>
<author>
<name sortKey="Demetrescu, R" uniqKey="Demetrescu R">R. Demetrescu</name>
</author>
<author>
<name sortKey="Malian, A" uniqKey="Malian A">A. Malian</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Fyson, R E" uniqKey="Fyson R">R.E. Fyson</name>
</author>
<author>
<name sortKey="Westwood, J C" uniqKey="Westwood J">J.C. Westwood</name>
</author>
<author>
<name sortKey="Brunner, A H" uniqKey="Brunner A">A.H. Brunner</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Chapman, M S" uniqKey="Chapman M">M.S. Chapman</name>
</author>
<author>
<name sortKey="Lamont, P H" uniqKey="Lamont P">P.H. Lamont</name>
</author>
<author>
<name sortKey="Harkness, J W" uniqKey="Harkness J">J.W. Harkness</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Adair, B M" uniqKey="Adair B">B.M. Adair</name>
</author>
<author>
<name sortKey="Mcferran, J B" uniqKey="Mcferran J">J.B. McFerran</name>
</author>
<author>
<name sortKey="Mckillop, E R" uniqKey="Mckillop E">E.R. McKillop</name>
</author>
<author>
<name sortKey="Mccullough, S J" uniqKey="Mccullough S">S.J. McCullough</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Lopez, J W" uniqKey="Lopez J">J.W. Lopez</name>
</author>
<author>
<name sortKey="Woods, G T" uniqKey="Woods G">G.T. Woods</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Lopez, J W" uniqKey="Lopez J">J.W. Lopez</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="El Sayed, A" uniqKey="El Sayed A">A. El-Sayed</name>
</author>
<author>
<name sortKey="Prince, A" uniqKey="Prince A">A. Prince</name>
</author>
<author>
<name sortKey="Fawzy, A" uniqKey="Fawzy A">A. Fawzy</name>
</author>
<author>
<name sortKey="Nadra, E" uniqKey="Nadra E">E. Nadra</name>
</author>
<author>
<name sortKey="Abdou, M I" uniqKey="Abdou M">M.I. Abdou</name>
</author>
<author>
<name sortKey="Omar, L" uniqKey="Omar L">L. Omar</name>
</author>
<author>
<name sortKey="Fayed, A" uniqKey="Fayed A">A. Fayed</name>
</author>
<author>
<name sortKey="Salem, M" uniqKey="Salem M">M. Salem</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Samina, I" uniqKey="Samina I">I. Samina</name>
</author>
<author>
<name sortKey="Zakay Rones, Z" uniqKey="Zakay Rones Z">Z. Zakay-Rones</name>
</author>
<author>
<name sortKey="Peleg, B A" uniqKey="Peleg B">B.A. Peleg</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Knight, C A" uniqKey="Knight C">C.A. Knight</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Ada, G L" uniqKey="Ada G">G.L. Ada</name>
</author>
<author>
<name sortKey="Perry, B T" uniqKey="Perry B">B.T. Perry</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Rafelson, M E" uniqKey="Rafelson M">M.E. Rafelson</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Davies, P" uniqKey="Davies P">P. Davies</name>
</author>
<author>
<name sortKey="Barry, R D" uniqKey="Barry R">R.D. Barry</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Deusberg, P H" uniqKey="Deusberg P">P.H. Deusberg</name>
</author>
<author>
<name sortKey="Robinson, W S" uniqKey="Robinson W">W.S. Robinson</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Pons, M W" uniqKey="Pons M">M.W. Pons</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Duesberg, P H" uniqKey="Duesberg P">P.H. Duesberg</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Compans, R W" uniqKey="Compans R">R.W. Compans</name>
</author>
<author>
<name sortKey="Dimmock, N J" uniqKey="Dimmock N">N.J. Dimmock</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Duesberg, P H" uniqKey="Duesberg P">P.H. Duesberg</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Nayak, D P" uniqKey="Nayak D">D.P. Nayak</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Skehel, J J" uniqKey="Skehel J">J.J. Skehel</name>
</author>
<author>
<name sortKey="Burke, D C" uniqKey="Burke D">D.C. Burke</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Bishop, D H" uniqKey="Bishop D">D.H. Bishop</name>
</author>
<author>
<name sortKey="Obijeski, J F" uniqKey="Obijeski J">J.F. Obijeski</name>
</author>
<author>
<name sortKey="Simpson, R W" uniqKey="Simpson R">R.W. Simpson</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Bishop, D H" uniqKey="Bishop D">D.H. Bishop</name>
</author>
<author>
<name sortKey="Obijeski, J F" uniqKey="Obijeski J">J.F. Obijeski</name>
</author>
<author>
<name sortKey="Simpson, R W" uniqKey="Simpson R">R.W. Simpson</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Penhoet, E" uniqKey="Penhoet E">E. Penhoet</name>
</author>
<author>
<name sortKey="Miller, H" uniqKey="Miller H">H. Miller</name>
</author>
<author>
<name sortKey="Doyle, M" uniqKey="Doyle M">M. Doyle</name>
</author>
<author>
<name sortKey="Blatti, S" uniqKey="Blatti S">S. Blatti</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Skehel, J J" uniqKey="Skehel J">J.J. Skehel</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Schwarz, R" uniqKey="Schwarz R">R. Schwarz</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Hastie, N D" uniqKey="Hastie N">N.D. Hastie</name>
</author>
<author>
<name sortKey="Mahy, B W" uniqKey="Mahy B">B.W. Mahy</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Hirst, G K" uniqKey="Hirst G">G.K. Hirst</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Choppin, P W" uniqKey="Choppin P">P.W. Choppin</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Choppin, P W" uniqKey="Choppin P">P.W. Choppin</name>
</author>
<author>
<name sortKey="Pons, M W" uniqKey="Pons M">M.W. Pons</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Leiderman, E" uniqKey="Leiderman E">E. Leiderman</name>
</author>
<author>
<name sortKey="Mogabgab, W J" uniqKey="Mogabgab W">W.J. Mogabgab</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Niven, J S" uniqKey="Niven J">J.S. Niven</name>
</author>
<author>
<name sortKey="Armstrong, J A" uniqKey="Armstrong J">J.A. Armstrong</name>
</author>
<author>
<name sortKey="Balfour, B M" uniqKey="Balfour B">B.M. Balfour</name>
</author>
<author>
<name sortKey="Klemperer, H G" uniqKey="Klemperer H">H.G. Klemperer</name>
</author>
<author>
<name sortKey="Tyrrell, D A" uniqKey="Tyrrell D">D.A. Tyrrell</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Ramos, B A" uniqKey="Ramos B">B.A. Ramos</name>
</author>
<author>
<name sortKey="De Torres, R A" uniqKey="De Torres R">R.A. De Torres</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Enami, M" uniqKey="Enami M">M. Enami</name>
</author>
<author>
<name sortKey="Fukuda, R" uniqKey="Fukuda R">R. Fukuda</name>
</author>
<author>
<name sortKey="Ishihama, A" uniqKey="Ishihama A">A. Ishihama</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Compans, R W" uniqKey="Compans R">R.W. Compans</name>
</author>
<author>
<name sortKey="Content, J" uniqKey="Content J">J. Content</name>
</author>
<author>
<name sortKey="Duesberg, P H" uniqKey="Duesberg P">P.H. Duesberg</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Compans, R W" uniqKey="Compans R">R.W. Compans</name>
</author>
<author>
<name sortKey="Klenk, H D" uniqKey="Klenk H">H.D. Klenk</name>
</author>
<author>
<name sortKey="Caliguiri, L A" uniqKey="Caliguiri L">L.A. Caliguiri</name>
</author>
<author>
<name sortKey="Choppin, P W" uniqKey="Choppin P">P.W. Choppin</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Compans, R W" uniqKey="Compans R">R.W. Compans</name>
</author>
<author>
<name sortKey="Caliguiri, L A" uniqKey="Caliguiri L">L.A. Caliguiri</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Content, J" uniqKey="Content J">J. Content</name>
</author>
<author>
<name sortKey="Duesberg, P H" uniqKey="Duesberg P">P.H. Duesberg</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Lazarowitz, S G" uniqKey="Lazarowitz S">S.G. Lazarowitz</name>
</author>
<author>
<name sortKey="Compans, R W" uniqKey="Compans R">R.W. Compans</name>
</author>
<author>
<name sortKey="Choppin, P W" uniqKey="Choppin P">P.W. Choppin</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Schulman, J L" uniqKey="Schulman J">J.L. Schulman</name>
</author>
<author>
<name sortKey="Palese, P" uniqKey="Palese P">P. Palese</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Beare, A S" uniqKey="Beare A">A.S. Beare</name>
</author>
<author>
<name sortKey="Keast, K" uniqKey="Keast K">K. Keast</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Lisok, T P" uniqKey="Lisok T">T.P. Lisok</name>
</author>
<author>
<name sortKey="Sominina, A A" uniqKey="Sominina A">A.A. Sominina</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Sominina, A A" uniqKey="Sominina A">A.A. Sominina</name>
</author>
<author>
<name sortKey="Lisok, T P" uniqKey="Lisok T">T.P. Lisok</name>
</author>
<author>
<name sortKey="Rumel, N B" uniqKey="Rumel N">N.B. Rumel</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Gavrilov, V I" uniqKey="Gavrilov V">V.I. Gavrilov</name>
</author>
<author>
<name sortKey="Asher, D M" uniqKey="Asher D">D.M. Asher</name>
</author>
<author>
<name sortKey="Vyalushkina, S D" uniqKey="Vyalushkina S">S.D. Vyalushkina</name>
</author>
<author>
<name sortKey="Ratushkina, L S" uniqKey="Ratushkina L">L.S. Ratushkina</name>
</author>
<author>
<name sortKey="Zmieva, R G" uniqKey="Zmieva R">R.G. Zmieva</name>
</author>
<author>
<name sortKey="Tumyan, B G" uniqKey="Tumyan B">B.G. Tumyan</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Krug, R M" uniqKey="Krug R">R.M. Krug</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Krug, R M" uniqKey="Krug R">R.M. Krug</name>
</author>
<author>
<name sortKey="Etkind, P R" uniqKey="Etkind P">P.R. Etkind</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Urabe, M" uniqKey="Urabe M">M. Urabe</name>
</author>
<author>
<name sortKey="Tanaka, T" uniqKey="Tanaka T">T. Tanaka</name>
</author>
<author>
<name sortKey="Tobita, K" uniqKey="Tobita K">K. Tobita</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="De, B K" uniqKey="De B">B.K. De</name>
</author>
<author>
<name sortKey="Nayak, D P" uniqKey="Nayak D">D.P. Nayak</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Nayak, D P" uniqKey="Nayak D">D.P. Nayak</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Von Magnus, P" uniqKey="Von Magnus P">P. Von Magnus</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Lazarowitz, S G" uniqKey="Lazarowitz S">S.G. Lazarowitz</name>
</author>
<author>
<name sortKey="Compans, R W" uniqKey="Compans R">R.W. Compans</name>
</author>
<author>
<name sortKey="Choppin, P W" uniqKey="Choppin P">P.W. Choppin</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Lazarowitz, S G" uniqKey="Lazarowitz S">S.G. Lazarowitz</name>
</author>
<author>
<name sortKey="Goldberg, A R" uniqKey="Goldberg A">A.R. Goldberg</name>
</author>
<author>
<name sortKey="Choppin, P W" uniqKey="Choppin P">P.W. Choppin</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Beare, A S" uniqKey="Beare A">A.S. Beare</name>
</author>
<author>
<name sortKey="Keast, K A" uniqKey="Keast K">K.A. Keast</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Crecelius, D M" uniqKey="Crecelius D">D.M. Crecelius</name>
</author>
<author>
<name sortKey="Deom, C M" uniqKey="Deom C">C.M. Deom</name>
</author>
<author>
<name sortKey="Schulze, I T" uniqKey="Schulze I">I.T. Schulze</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Deom, C M" uniqKey="Deom C">C.M. Deom</name>
</author>
<author>
<name sortKey="Schulze, I T" uniqKey="Schulze I">I.T. Schulze</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Mir Shekari, S Y" uniqKey="Mir Shekari S">S.Y. Mir-Shekari</name>
</author>
<author>
<name sortKey="Ashford, D A" uniqKey="Ashford D">D.A. Ashford</name>
</author>
<author>
<name sortKey="Harvey, D J" uniqKey="Harvey D">D.J. Harvey</name>
</author>
<author>
<name sortKey="Dwek, R A" uniqKey="Dwek R">R.A. Dwek</name>
</author>
<author>
<name sortKey="Schulze, I T" uniqKey="Schulze I">I.T. Schulze</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Schulze, I T" uniqKey="Schulze I">I.T. Schulze</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Murphy, B R" uniqKey="Murphy B">B.R. Murphy</name>
</author>
<author>
<name sortKey="Chalhub, E G" uniqKey="Chalhub E">E.G. Chalhub</name>
</author>
<author>
<name sortKey="Nusinoff, S R" uniqKey="Nusinoff S">S.R. Nusinoff</name>
</author>
<author>
<name sortKey="Chanock, R M" uniqKey="Chanock R">R.M. Chanock</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Kitayama, T" uniqKey="Kitayama T">T. Kitayama</name>
</author>
<author>
<name sortKey="Togo, Y" uniqKey="Togo Y">Y. Togo</name>
</author>
<author>
<name sortKey="Hornick, R B" uniqKey="Hornick R">R.B. Hornick</name>
</author>
<author>
<name sortKey="Friedwald, W T" uniqKey="Friedwald W">W.T. Friedwald</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Sugiura, A" uniqKey="Sugiura A">A. Sugiura</name>
</author>
<author>
<name sortKey="Tobita, K" uniqKey="Tobita K">K. Tobita</name>
</author>
<author>
<name sortKey="Kilbourne, E D" uniqKey="Kilbourne E">E.D. Kilbourne</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Sokolova, N N" uniqKey="Sokolova N">N.N. Sokolova</name>
</author>
<author>
<name sortKey="Irzhanov, S D" uniqKey="Irzhanov S">S.D. Irzhanov</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Reed, S E" uniqKey="Reed S">S.E. Reed</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Gorev, N E" uniqKey="Gorev N">N.E. Gorev</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Schaffer, F L" uniqKey="Schaffer F">F.L. Schaffer</name>
</author>
<author>
<name sortKey="Soergel, M E" uniqKey="Soergel M">M.E. Soergel</name>
</author>
<author>
<name sortKey="Straube, D C" uniqKey="Straube D">D.C. Straube</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Sreenivasan, C C" uniqKey="Sreenivasan C">C.C. Sreenivasan</name>
</author>
<author>
<name sortKey="Jandhyala, S S" uniqKey="Jandhyala S">S.S. Jandhyala</name>
</author>
<author>
<name sortKey="Luo, S" uniqKey="Luo S">S. Luo</name>
</author>
<author>
<name sortKey="Hause, B M" uniqKey="Hause B">B.M. Hause</name>
</author>
<author>
<name sortKey="Thomas, M" uniqKey="Thomas M">M. Thomas</name>
</author>
<author>
<name sortKey="Knudsen, D E B" uniqKey="Knudsen D">D.E.B. Knudsen</name>
</author>
<author>
<name sortKey="Leslie Steen, P" uniqKey="Leslie Steen P">P. Leslie-Steen</name>
</author>
<author>
<name sortKey="Clement, T" uniqKey="Clement T">T. Clement</name>
</author>
<author>
<name sortKey="Reedy, S E" uniqKey="Reedy S">S.E. Reedy</name>
</author>
<author>
<name sortKey="Chambers, T M" uniqKey="Chambers T">T.M. Chambers</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Gagov, I" uniqKey="Gagov I">I. Gagov</name>
</author>
<author>
<name sortKey="Pancheva Golovinska, S" uniqKey="Pancheva Golovinska S">S. Pancheva-Golovinska</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Gagov, I" uniqKey="Gagov I">I. Gagov</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="De Sousa, C P" uniqKey="De Sousa C">C.P. De Sousa</name>
</author>
<author>
<name sortKey="Belyavin, G" uniqKey="Belyavin G">G. Belyavin</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Gagov, I" uniqKey="Gagov I">I. Gagov</name>
</author>
<author>
<name sortKey="Manolova, N" uniqKey="Manolova N">N. Manolova</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Lenard, J" uniqKey="Lenard J">J. Lenard</name>
</author>
<author>
<name sortKey="Compans, R W" uniqKey="Compans R">R.W. Compans</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Lee, Y S" uniqKey="Lee Y">Y.S. Lee</name>
</author>
<author>
<name sortKey="Seong, B L" uniqKey="Seong B">B.L. Seong</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Lenard, J" uniqKey="Lenard J">J. Lenard</name>
</author>
<author>
<name sortKey="Tsai, D K" uniqKey="Tsai D">D.K. Tsai</name>
</author>
<author>
<name sortKey="Compans, R W" uniqKey="Compans R">R.W. Compans</name>
</author>
<author>
<name sortKey="Landsberger, F R" uniqKey="Landsberger F">F.R. Landsberger</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Ransohoff, R M" uniqKey="Ransohoff R">R.M. Ransohoff</name>
</author>
<author>
<name sortKey="Maroney, P A" uniqKey="Maroney P">P.A. Maroney</name>
</author>
<author>
<name sortKey="Nayak, D P" uniqKey="Nayak D">D.P. Nayak</name>
</author>
<author>
<name sortKey="Chambers, T M" uniqKey="Chambers T">T.M. Chambers</name>
</author>
<author>
<name sortKey="Nilsen, T W" uniqKey="Nilsen T">T.W. Nilsen</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Lanni, F" uniqKey="Lanni F">F. Lanni</name>
</author>
<author>
<name sortKey="Lanni, Y T" uniqKey="Lanni Y">Y.T. Lanni</name>
</author>
<author>
<name sortKey="Beard, J W" uniqKey="Beard J">J.W. Beard</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Perdijk, O" uniqKey="Perdijk O">O. Perdijk</name>
</author>
<author>
<name sortKey="Van Splunter, M" uniqKey="Van Splunter M">M. Van Splunter</name>
</author>
<author>
<name sortKey="Savelkoul, H F J" uniqKey="Savelkoul H">H.F.J. Savelkoul</name>
</author>
<author>
<name sortKey="Brugman, S" uniqKey="Brugman S">S. Brugman</name>
</author>
<author>
<name sortKey="Van Neerven, R J J" uniqKey="Van Neerven R">R.J.J. Van Neerven</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Alisky, J" uniqKey="Alisky J">J. Alisky</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Curtain, C C" uniqKey="Curtain C">C.C. Curtain</name>
</author>
<author>
<name sortKey="Pye, J" uniqKey="Pye J">J. Pye</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Lycke, E" uniqKey="Lycke E">E. Lycke</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Ng, W C" uniqKey="Ng W">W.C. Ng</name>
</author>
<author>
<name sortKey="Wong, V" uniqKey="Wong V">V. Wong</name>
</author>
<author>
<name sortKey="Muller, B" uniqKey="Muller B">B. Muller</name>
</author>
<author>
<name sortKey="Rawlin, G" uniqKey="Rawlin G">G. Rawlin</name>
</author>
<author>
<name sortKey="Brown, L E" uniqKey="Brown L">L.E. Brown</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Uchida, K" uniqKey="Uchida K">K. Uchida</name>
</author>
<author>
<name sortKey="Hiruta, N" uniqKey="Hiruta N">N. Hiruta</name>
</author>
<author>
<name sortKey="Yamaguchi, H" uniqKey="Yamaguchi H">H. Yamaguchi</name>
</author>
<author>
<name sortKey="Yamashita, K" uniqKey="Yamashita K">K. Yamashita</name>
</author>
<author>
<name sortKey="Fujimura, K" uniqKey="Fujimura K">K. Fujimura</name>
</author>
<author>
<name sortKey="Yasui, H" uniqKey="Yasui H">H. Yasui</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Wong, E B" uniqKey="Wong E">E.B. Wong</name>
</author>
<author>
<name sortKey="Mallet, J F" uniqKey="Mallet J">J.F. Mallet</name>
</author>
<author>
<name sortKey="Duarte, J" uniqKey="Duarte J">J. Duarte</name>
</author>
<author>
<name sortKey="Matar, C" uniqKey="Matar C">C. Matar</name>
</author>
<author>
<name sortKey="Ritz, B W" uniqKey="Ritz B">B.W. Ritz</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Xu, M L" uniqKey="Xu M">M.L. Xu</name>
</author>
<author>
<name sortKey="Kim, H J" uniqKey="Kim H">H.J. Kim</name>
</author>
<author>
<name sortKey="Chang, D Y" uniqKey="Chang D">D.Y. Chang</name>
</author>
<author>
<name sortKey="Kim, H J" uniqKey="Kim H">H.J. Kim</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Benson, K F" uniqKey="Benson K">K.F. Benson</name>
</author>
<author>
<name sortKey="Carter, S G" uniqKey="Carter S">S.G. Carter</name>
</author>
<author>
<name sortKey="Patterson, K M" uniqKey="Patterson K">K.M. Patterson</name>
</author>
<author>
<name sortKey="Patel, D" uniqKey="Patel D">D. Patel</name>
</author>
<author>
<name sortKey="Jensen, G S" uniqKey="Jensen G">G.S. Jensen</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Ammendolia, M G" uniqKey="Ammendolia M">M.G. Ammendolia</name>
</author>
<author>
<name sortKey="Agamennone, M" uniqKey="Agamennone M">M. Agamennone</name>
</author>
<author>
<name sortKey="Pietrantoni, A" uniqKey="Pietrantoni A">A. Pietrantoni</name>
</author>
<author>
<name sortKey="Lannutti, F" uniqKey="Lannutti F">F. Lannutti</name>
</author>
<author>
<name sortKey="Siciliano, R A" uniqKey="Siciliano R">R.A. Siciliano</name>
</author>
<author>
<name sortKey="De Giulio, B" uniqKey="De Giulio B">B. De Giulio</name>
</author>
<author>
<name sortKey="Amici, C" uniqKey="Amici C">C. Amici</name>
</author>
<author>
<name sortKey="Superti, F" uniqKey="Superti F">F. Superti</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Pietrantoni, A" uniqKey="Pietrantoni A">A. Pietrantoni</name>
</author>
<author>
<name sortKey="Ammendolia, M G" uniqKey="Ammendolia M">M.G. Ammendolia</name>
</author>
<author>
<name sortKey="Superti, F" uniqKey="Superti F">F. Superti</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Pietrantoni, A" uniqKey="Pietrantoni A">A. Pietrantoni</name>
</author>
<author>
<name sortKey="Dofrelli, E" uniqKey="Dofrelli E">E. Dofrelli</name>
</author>
<author>
<name sortKey="Tinari, A" uniqKey="Tinari A">A. Tinari</name>
</author>
<author>
<name sortKey="Ammendolia, M G" uniqKey="Ammendolia M">M.G. Ammendolia</name>
</author>
<author>
<name sortKey="Puzelli, S" uniqKey="Puzelli S">S. Puzelli</name>
</author>
<author>
<name sortKey="Fabiani, C" uniqKey="Fabiani C">C. Fabiani</name>
</author>
<author>
<name sortKey="Donatelli, I" uniqKey="Donatelli I">I. Donatelli</name>
</author>
<author>
<name sortKey="Superti, F" uniqKey="Superti F">F. Superti</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Shin, K" uniqKey="Shin K">K. Shin</name>
</author>
<author>
<name sortKey="Wakabayashi, H" uniqKey="Wakabayashi H">H. Wakabayashi</name>
</author>
<author>
<name sortKey="Yamauchi, K" uniqKey="Yamauchi K">K. Yamauchi</name>
</author>
<author>
<name sortKey="Teraguchi, S" uniqKey="Teraguchi S">S. Teraguchi</name>
</author>
<author>
<name sortKey="Tamura, Y" uniqKey="Tamura Y">Y. Tamura</name>
</author>
<author>
<name sortKey="Kurokawa, M" uniqKey="Kurokawa M">M. Kurokawa</name>
</author>
<author>
<name sortKey="Shiraki, K" uniqKey="Shiraki K">K. Shiraki</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Scala, M C" uniqKey="Scala M">M.C. Scala</name>
</author>
<author>
<name sortKey="Sala, M" uniqKey="Sala M">M. Sala</name>
</author>
<author>
<name sortKey="Pietrantoni, A" uniqKey="Pietrantoni A">A. Pietrantoni</name>
</author>
<author>
<name sortKey="Spensiero, A" uniqKey="Spensiero A">A. Spensiero</name>
</author>
<author>
<name sortKey="Di Micco, S" uniqKey="Di Micco S">S. Di Micco</name>
</author>
<author>
<name sortKey="Agamennone, M" uniqKey="Agamennone M">M. Agamennone</name>
</author>
<author>
<name sortKey="Bertamino, A" uniqKey="Bertamino A">A. Bertamino</name>
</author>
<author>
<name sortKey="Novellino, E" uniqKey="Novellino E">E. Novellino</name>
</author>
<author>
<name sortKey="Bifulco, G" uniqKey="Bifulco G">G. Bifulco</name>
</author>
<author>
<name sortKey="Gomez Monterrey, I M" uniqKey="Gomez Monterrey I">I.M. Gomez-Monterrey</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Superti, F" uniqKey="Superti F">F. Superti</name>
</author>
<author>
<name sortKey="Agamennone, M" uniqKey="Agamennone M">M. Agamennone</name>
</author>
<author>
<name sortKey="Pietrantoni, A" uniqKey="Pietrantoni A">A. Pietrantoni</name>
</author>
<author>
<name sortKey="Ammendolia, M G" uniqKey="Ammendolia M">M.G. Ammendolia</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Yamauchi, K" uniqKey="Yamauchi K">K. Yamauchi</name>
</author>
<author>
<name sortKey="Wakabayashi, H" uniqKey="Wakabayashi H">H. Wakabayashi</name>
</author>
<author>
<name sortKey="Shin, K" uniqKey="Shin K">K. Shin</name>
</author>
<author>
<name sortKey="Takase, M" uniqKey="Takase M">M. Takase</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="De Sousa, C P" uniqKey="De Sousa C">C.P. de Sousa</name>
</author>
<author>
<name sortKey="Bal, A" uniqKey="Bal A">A. Bal</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Beardmore, W B" uniqKey="Beardmore W">W.B. Beardmore</name>
</author>
<author>
<name sortKey="Jones, K V" uniqKey="Jones K">K.V. Jones</name>
</author>
<author>
<name sortKey="Clark, T D" uniqKey="Clark T">T.D. Clark</name>
</author>
<author>
<name sortKey="Hebeka, E K" uniqKey="Hebeka E">E.K. Hebeka</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Saiatov, M" uniqKey="Saiatov M">M. Saiatov</name>
</author>
<author>
<name sortKey="Shuratov, I" uniqKey="Shuratov I">I. Shuratov</name>
</author>
<author>
<name sortKey="Beisembaeva, R U" uniqKey="Beisembaeva R">R.U. Beisembaeva</name>
</author>
<author>
<name sortKey="Akhmetova, N A" uniqKey="Akhmetova N">N.A. Akhmetova</name>
</author>
<author>
<name sortKey="Asanova, S E" uniqKey="Asanova S">S.E. Asanova</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Kawai, T" uniqKey="Kawai T">T. Kawai</name>
</author>
<author>
<name sortKey="Kase, T" uniqKey="Kase T">T. Kase</name>
</author>
<author>
<name sortKey="Suzuki, Y" uniqKey="Suzuki Y">Y. Suzuki</name>
</author>
<author>
<name sortKey="Eda, S" uniqKey="Eda S">S. Eda</name>
</author>
<author>
<name sortKey="Sakamoto, T" uniqKey="Sakamoto T">T. Sakamoto</name>
</author>
<author>
<name sortKey="Ohtani, K" uniqKey="Ohtani K">K. Ohtani</name>
</author>
<author>
<name sortKey="Wakamiya, N" uniqKey="Wakamiya N">N. Wakamiya</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Anders, E M" uniqKey="Anders E">E.M. Anders</name>
</author>
<author>
<name sortKey="Hartley, C A" uniqKey="Hartley C">C.A. Hartley</name>
</author>
<author>
<name sortKey="Jackson, D C" uniqKey="Jackson D">D.C. Jackson</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Eda, S" uniqKey="Eda S">S. Eda</name>
</author>
<author>
<name sortKey="Suzuki, Y" uniqKey="Suzuki Y">Y. Suzuki</name>
</author>
<author>
<name sortKey="Kase, T" uniqKey="Kase T">T. Kase</name>
</author>
<author>
<name sortKey="Kawai, T" uniqKey="Kawai T">T. Kawai</name>
</author>
<author>
<name sortKey="Ohtani, K" uniqKey="Ohtani K">K. Ohtani</name>
</author>
<author>
<name sortKey="Sakamoto, T" uniqKey="Sakamoto T">T. Sakamoto</name>
</author>
<author>
<name sortKey="Kurimura, T" uniqKey="Kurimura T">T. Kurimura</name>
</author>
<author>
<name sortKey="Wakamiya, N" uniqKey="Wakamiya N">N. Wakamiya</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Hartley, C A" uniqKey="Hartley C">C.A. Hartley</name>
</author>
<author>
<name sortKey="Jackson, D C" uniqKey="Jackson D">D.C. Jackson</name>
</author>
<author>
<name sortKey="Anders, E M" uniqKey="Anders E">E.M. Anders</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Hartshorn, K L" uniqKey="Hartshorn K">K.L. Hartshorn</name>
</author>
<author>
<name sortKey="Sastry, K" uniqKey="Sastry K">K. Sastry</name>
</author>
<author>
<name sortKey="Brown, D" uniqKey="Brown D">D. Brown</name>
</author>
<author>
<name sortKey="White, M R" uniqKey="White M">M.R. White</name>
</author>
<author>
<name sortKey="Okarma, T B" uniqKey="Okarma T">T.B. Okarma</name>
</author>
<author>
<name sortKey="Lee, Y M" uniqKey="Lee Y">Y.M. Lee</name>
</author>
<author>
<name sortKey="Tauber, A I" uniqKey="Tauber A">A.I. Tauber</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Wakamiya, N" uniqKey="Wakamiya N">N. Wakamiya</name>
</author>
<author>
<name sortKey="Okuno, Y" uniqKey="Okuno Y">Y. Okuno</name>
</author>
<author>
<name sortKey="Sasao, F" uniqKey="Sasao F">F. Sasao</name>
</author>
<author>
<name sortKey="Ueda, S" uniqKey="Ueda S">S. Ueda</name>
</author>
<author>
<name sortKey="Yoshimatsu, K" uniqKey="Yoshimatsu K">K. Yoshimatsu</name>
</author>
<author>
<name sortKey="Naiki, M" uniqKey="Naiki M">M. Naiki</name>
</author>
<author>
<name sortKey="Kurimura, T" uniqKey="Kurimura T">T. Kurimura</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Suzuki, Y" uniqKey="Suzuki Y">Y. Suzuki</name>
</author>
<author>
<name sortKey="Eda, S" uniqKey="Eda S">S. Eda</name>
</author>
<author>
<name sortKey="Kawai, T" uniqKey="Kawai T">T. Kawai</name>
</author>
<author>
<name sortKey="Ohtani, K" uniqKey="Ohtani K">K. Ohtani</name>
</author>
<author>
<name sortKey="Kase, T" uniqKey="Kase T">T. Kase</name>
</author>
<author>
<name sortKey="Sakamoto, T" uniqKey="Sakamoto T">T. Sakamoto</name>
</author>
<author>
<name sortKey="Wakamiya, N" uniqKey="Wakamiya N">N. Wakamiya</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Reading, P C" uniqKey="Reading P">P.C. Reading</name>
</author>
<author>
<name sortKey="Holmskov, U" uniqKey="Holmskov U">U. Holmskov</name>
</author>
<author>
<name sortKey="Anders, E M" uniqKey="Anders E">E.M. Anders</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Hartshorn, K L" uniqKey="Hartshorn K">K.L. Hartshorn</name>
</author>
<author>
<name sortKey="White, M R" uniqKey="White M">M.R. White</name>
</author>
<author>
<name sortKey="Smith, K" uniqKey="Smith K">K. Smith</name>
</author>
<author>
<name sortKey="Sorensen, G" uniqKey="Sorensen G">G. Sorensen</name>
</author>
<author>
<name sortKey="Kuroki, Y" uniqKey="Kuroki Y">Y. Kuroki</name>
</author>
<author>
<name sortKey="Holmskov, U" uniqKey="Holmskov U">U. Holmskov</name>
</author>
<author>
<name sortKey="Head, J" uniqKey="Head J">J. Head</name>
</author>
<author>
<name sortKey="Crouch, E C" uniqKey="Crouch E">E.C. Crouch</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Dec, M" uniqKey="Dec M">M. Dec</name>
</author>
<author>
<name sortKey="Wernicki, A" uniqKey="Wernicki A">A. Wernicki</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Zhirnov, O P" uniqKey="Zhirnov O">O.P. Zhirnov</name>
</author>
<author>
<name sortKey="Matrosovich, T Y" uniqKey="Matrosovich T">T.Y. Matrosovich</name>
</author>
<author>
<name sortKey="Matrosovich, M N" uniqKey="Matrosovich M">M.N. Matrosovich</name>
</author>
<author>
<name sortKey="Klenk, H D" uniqKey="Klenk H">H.D. Klenk</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Zhirnov, O P" uniqKey="Zhirnov O">O.P. Zhirnov</name>
</author>
<author>
<name sortKey="Klenk, H D" uniqKey="Klenk H">H.D. Klenk</name>
</author>
<author>
<name sortKey="Wright, P F" uniqKey="Wright P">P.F. Wright</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Kimoto, T" uniqKey="Kimoto T">T. Kimoto</name>
</author>
<author>
<name sortKey="Mizuno, D" uniqKey="Mizuno D">D. Mizuno</name>
</author>
<author>
<name sortKey="Takei, T" uniqKey="Takei T">T. Takei</name>
</author>
<author>
<name sortKey="Kunimi, T" uniqKey="Kunimi T">T. Kunimi</name>
</author>
<author>
<name sortKey="Ono, S" uniqKey="Ono S">S. Ono</name>
</author>
<author>
<name sortKey="Sakai, S" uniqKey="Sakai S">S. Sakai</name>
</author>
<author>
<name sortKey="Kido, H" uniqKey="Kido H">H. Kido</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Glasky, A J" uniqKey="Glasky A">A.J. Glasky</name>
</author>
<author>
<name sortKey="Simon, L" uniqKey="Simon L">L. Simon</name>
</author>
<author>
<name sortKey="Holper, J C" uniqKey="Holper J">J.C. Holper</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Horisberger, M A" uniqKey="Horisberger M">M.A. Horisberger</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Verhelst, J" uniqKey="Verhelst J">J. Verhelst</name>
</author>
<author>
<name sortKey="Hulpiau, P" uniqKey="Hulpiau P">P. Hulpiau</name>
</author>
<author>
<name sortKey="Saelens, X" uniqKey="Saelens X">X. Saelens</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Garigliany, M M" uniqKey="Garigliany M">M.M. Garigliany</name>
</author>
<author>
<name sortKey="Cornet, A" uniqKey="Cornet A">A. Cornet</name>
</author>
<author>
<name sortKey="Desmecht, D" uniqKey="Desmecht D">D. Desmecht</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Schmidt, E" uniqKey="Schmidt E">E. Schmidt</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Krizanova, O" uniqKey="Krizanova O">O. Krizanova</name>
</author>
<author>
<name sortKey="Rathova, V" uniqKey="Rathova V">V. Rathova</name>
</author>
<author>
<name sortKey="Kociskova, D" uniqKey="Kociskova D">D. Kociskova</name>
</author>
<author>
<name sortKey="Szanto, J" uniqKey="Szanto J">J. Szanto</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Moisa, I" uniqKey="Moisa I">I. Moisa</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Shortridge, K F" uniqKey="Shortridge K">K.F. Shortridge</name>
</author>
<author>
<name sortKey="Lansdell, A" uniqKey="Lansdell A">A. Lansdell</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Osipova, Z A" uniqKey="Osipova Z">Z.A. Osipova</name>
</author>
<author>
<name sortKey="Medvedeva, M N" uniqKey="Medvedeva M">M.N. Medvedeva</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Hartshorn, K L" uniqKey="Hartshorn K">K.L. Hartshorn</name>
</author>
<author>
<name sortKey="Holmskov, U" uniqKey="Holmskov U">U. Holmskov</name>
</author>
<author>
<name sortKey="Hansen, S" uniqKey="Hansen S">S. Hansen</name>
</author>
<author>
<name sortKey="Zhang, P" uniqKey="Zhang P">P. Zhang</name>
</author>
<author>
<name sortKey="Meschi, J" uniqKey="Meschi J">J. Meschi</name>
</author>
<author>
<name sortKey="Mogues, T" uniqKey="Mogues T">T. Mogues</name>
</author>
<author>
<name sortKey="White, M R" uniqKey="White M">M.R. White</name>
</author>
<author>
<name sortKey="Crouch, E C" uniqKey="Crouch E">E.C. Crouch</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Singh, N" uniqKey="Singh N">N. Singh</name>
</author>
<author>
<name sortKey="Pandey, A" uniqKey="Pandey A">A. Pandey</name>
</author>
<author>
<name sortKey="Jayashankar, L" uniqKey="Jayashankar L">L. Jayashankar</name>
</author>
<author>
<name sortKey="Mittal, S K" uniqKey="Mittal S">S.K. Mittal</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Sayedahmed, E E" uniqKey="Sayedahmed E">E.E. Sayedahmed</name>
</author>
<author>
<name sortKey="Hassan, A O" uniqKey="Hassan A">A.O. Hassan</name>
</author>
<author>
<name sortKey="Kumari, R" uniqKey="Kumari R">R. Kumari</name>
</author>
<author>
<name sortKey="Cao, W" uniqKey="Cao W">W. Cao</name>
</author>
<author>
<name sortKey="Gangappa, S" uniqKey="Gangappa S">S. Gangappa</name>
</author>
<author>
<name sortKey="York, I" uniqKey="York I">I. York</name>
</author>
<author>
<name sortKey="Sambhara, S" uniqKey="Sambhara S">S. Sambhara</name>
</author>
<author>
<name sortKey="Mittal, S K" uniqKey="Mittal S">S.K. Mittal</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Mailybayeva, A" uniqKey="Mailybayeva A">A. Mailybayeva</name>
</author>
<author>
<name sortKey="Yespembetov, B" uniqKey="Yespembetov B">B. Yespembetov</name>
</author>
<author>
<name sortKey="Ryskeldinova, S" uniqKey="Ryskeldinova S">S. Ryskeldinova</name>
</author>
<author>
<name sortKey="Zinina, N" uniqKey="Zinina N">N. Zinina</name>
</author>
<author>
<name sortKey="Sansyzbay, A" uniqKey="Sansyzbay A">A. Sansyzbay</name>
</author>
<author>
<name sortKey="Renukaradhya, G J" uniqKey="Renukaradhya G">G.J. Renukaradhya</name>
</author>
<author>
<name sortKey="Petrovsky, N" uniqKey="Petrovsky N">N. Petrovsky</name>
</author>
<author>
<name sortKey="Tabynov, K" uniqKey="Tabynov K">K. Tabynov</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Tabynov, K" uniqKey="Tabynov K">K. Tabynov</name>
</author>
</analytic>
</biblStruct>
<biblStruct>
<analytic>
<author>
<name sortKey="Yu, J" uniqKey="Yu J">J. Yu</name>
</author>
<author>
<name sortKey="Hika, B" uniqKey="Hika B">B. Hika</name>
</author>
<author>
<name sortKey="Liu, R" uniqKey="Liu R">R. Liu</name>
</author>
<author>
<name sortKey="Sheng, Z" uniqKey="Sheng Z">Z. Sheng</name>
</author>
<author>
<name sortKey="Hause, B M" uniqKey="Hause B">B.M. Hause</name>
</author>
<author>
<name sortKey="Li, F" uniqKey="Li F">F. Li</name>
</author>
<author>
<name sortKey="Wang, D" uniqKey="Wang D">D. Wang</name>
</author>
</analytic>
</biblStruct>
</listBibl>
</div1>
</back>
</TEI>
<pmc article-type="review-article">
<pmc-dir>properties open_access</pmc-dir>
<front>
<journal-meta>
<journal-id journal-id-type="nlm-ta">Viruses</journal-id>
<journal-id journal-id-type="iso-abbrev">Viruses</journal-id>
<journal-id journal-id-type="publisher-id">viruses</journal-id>
<journal-title-group>
<journal-title>Viruses</journal-title>
</journal-title-group>
<issn pub-type="epub">1999-4915</issn>
<publisher>
<publisher-name>MDPI</publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id pub-id-type="pmid">31213032</article-id>
<article-id pub-id-type="pmc">6631717</article-id>
<article-id pub-id-type="doi">10.3390/v11060561</article-id>
<article-id pub-id-type="publisher-id">viruses-11-00561</article-id>
<article-categories>
<subj-group subj-group-type="heading">
<subject>Review</subject>
</subj-group>
</article-categories>
<title-group>
<article-title>Influenza A in Bovine Species: A Narrative Literature Review</article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname>Sreenivasan</surname>
<given-names>Chithra C.</given-names>
</name>
<xref ref-type="aff" rid="af1-viruses-11-00561">1</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Thomas</surname>
<given-names>Milton</given-names>
</name>
<xref ref-type="aff" rid="af2-viruses-11-00561">2</xref>
</contrib>
<contrib contrib-type="author">
<contrib-id contrib-id-type="orcid" authenticated="true">https://orcid.org/0000-0003-4204-9323</contrib-id>
<name>
<surname>Kaushik</surname>
<given-names>Radhey S.</given-names>
</name>
<xref ref-type="aff" rid="af1-viruses-11-00561">1</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Wang</surname>
<given-names>Dan</given-names>
</name>
<xref ref-type="aff" rid="af1-viruses-11-00561">1</xref>
<xref ref-type="aff" rid="af3-viruses-11-00561">3</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Li</surname>
<given-names>Feng</given-names>
</name>
<xref ref-type="aff" rid="af1-viruses-11-00561">1</xref>
<xref ref-type="aff" rid="af3-viruses-11-00561">3</xref>
<xref rid="c1-viruses-11-00561" ref-type="corresp">*</xref>
</contrib>
</contrib-group>
<aff id="af1-viruses-11-00561">
<label>1</label>
Department of Biology and Microbiology, South Dakota State University, Brookings, SD 57007, USA;
<email>chithra.sreenivasan@sdstate.edu</email>
(C.C.S.);
<email>radhey.kaushik@sdstate.edu</email>
(R.S.K.);
<email>dan.wang@sdstate.edu</email>
(D.W.)</aff>
<aff id="af2-viruses-11-00561">
<label>2</label>
Department of Veterinary and Biomedical Sciences, South Dakota State University, Brookings, SD 57007, USA;
<email>milton.thomas@sdstate.edu</email>
</aff>
<aff id="af3-viruses-11-00561">
<label>3</label>
BioSystems Networks and Translational Research Center (BioSNTR), Brookings, SD 57007, USA</aff>
<author-notes>
<corresp id="c1-viruses-11-00561">
<label>*</label>
Correspondence:
<email>feng.li@sdstate.edu</email>
; Tel.: +1-605-688-6036</corresp>
</author-notes>
<pub-date pub-type="epub">
<day>17</day>
<month>6</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="collection">
<month>6</month>
<year>2019</year>
</pub-date>
<volume>11</volume>
<issue>6</issue>
<elocation-id>561</elocation-id>
<history>
<date date-type="received">
<day>17</day>
<month>5</month>
<year>2019</year>
</date>
<date date-type="accepted">
<day>14</day>
<month>6</month>
<year>2019</year>
</date>
</history>
<permissions>
<copyright-statement>© 2019 by the authors.</copyright-statement>
<copyright-year>2019</copyright-year>
<license license-type="open-access">
<license-p>Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (
<ext-link ext-link-type="uri" xlink:href="http://creativecommons.org/licenses/by/4.0/">http://creativecommons.org/licenses/by/4.0/</ext-link>
).</license-p>
</license>
</permissions>
<abstract>
<p>It is quite intriguing that bovines were largely unaffected by influenza A, even though most of the domesticated and wild animals/birds at the human–animal interface succumbed to infection over the past few decades. Influenza A occurs on a very infrequent basis in bovine species and hence bovines were not considered to be susceptible hosts for influenza until the emergence of influenza D. This review describes a multifaceted chronological review of literature on influenza in cattle which comprises mainly of the natural infections/outbreaks, experimental studies, and pathological and seroepidemiological aspects of influenza A that have occurred in the past. The review also sheds light on the bovine models used in vitro and in vivo for influenza-related studies over recent years. Despite a few natural cases in the mid-twentieth century and seroprevalence of human, swine, and avian influenza viruses in bovines, the evolution and host adaptation of influenza A virus (IAV) in this species suffered a serious hindrance until the novel influenza D virus (IDV) emerged recently in cattle across the world. Supposedly, certain bovine host factors, particularly some serum components and secretory proteins, were reported to have anti-influenza properties, which could be an attributing factor for the resilient nature of bovines to IAV. Further studies are needed to identify the host-specific factors contributing to the differential pathogenetic mechanisms and disease progression of IAV in bovines compared to other susceptible mammalian hosts.</p>
</abstract>
<kwd-group>
<kwd>ruminants</kwd>
<kwd>bovine</kwd>
<kwd>cattle outbreaks</kwd>
<kwd>Influenza A</kwd>
<kwd>host restriction</kwd>
<kwd>bovine cell cultures</kwd>
<kwd>bovine respiratory disease</kwd>
<kwd>bronchopneumonia</kwd>
<kwd>epizootic cough</kwd>
<kwd>seroprevalence</kwd>
<kwd>MDBK cells</kwd>
</kwd-group>
</article-meta>
</front>
<body>
<sec sec-type="intro" id="sec1-viruses-11-00561">
<title>1. Introduction</title>
<p>Influenza viruses belong to
<italic>Orthomyxoviridae</italic>
family and are negative-sense single-stranded RNA viruses causing acute respiratory disease in a multitude of hosts all over the world. Influenza viruses were recognized as early as the 16th century and the first pandemic officially documented was in 1580 [
<xref rid="B1-viruses-11-00561" ref-type="bibr">1</xref>
]. Influenza viruses evolved to form mainly four types: alphainfluenza virus (influenza A), betainfluenza (influenza B), gammainfluenza (influenza C), and deltainfluenza (influenza D) which again diverged to subtypes and lineages, affecting multiple mammalian species worldwide, including humans. Influenza viruses undergo antigenic drift—acquiring frequent mutations in HA and NA, which enables the virions to evade the pre-existing immunity to cause seasonal epidemics/epizootics, and antigenic shift—undergoing gene reassortments causing pandemics. The most important IAV human pandemics: 1918 Spanish flu (H1N1), 1957–1958 Asian flu (H2N2), 1968 Hong Kong flu (H3N2), and 2009 swine-origin H1N1 emerged during the last century [
<xref rid="B1-viruses-11-00561" ref-type="bibr">1</xref>
].</p>
<p>Structurally, IAV and IBV genomes have eight RNA segments, whereas ICV and IDV have only seven segments. IAV has hemagglutinin (HA), neuraminidase (NA), matrix proteins (M1, M2), and NP (ribonucleoprotein) as structural proteins; 3 subunits of the RNA polymerase complex, polymerase basic protein 1 (PB1), polymerase basic protein 2 (PB2), and polymerase acidic protein (PA); and 3 nonstructural proteins, NS1, NS2/NEP (nuclear export protein), and PB1-F2. Studies have shown that NS2 and M1 protein form complexes that can be detected in purified virions and cell lysates of virus-infected cells [
<xref rid="B2-viruses-11-00561" ref-type="bibr">2</xref>
,
<xref rid="B3-viruses-11-00561" ref-type="bibr">3</xref>
]. Hence, NS2 and (probably) NS1 of IAV are not considered as non-structural proteins, as these proteins can be detected in virions [
<xref rid="B4-viruses-11-00561" ref-type="bibr">4</xref>
]. IBV possesses six structural proteins, HA, NA, NB, M2, M1, NP and NS2; 3 subunits of RNA polymerase complex, PA, PB1, and PB2; and nonstructural protein NS1 [
<xref rid="B5-viruses-11-00561" ref-type="bibr">5</xref>
]. ICV and IDV have 4 structural proteins, M2, M1, NP, and the hemagglutinin–esterase fusion (HEF) protein that replaces the HA and NA of IAV or IBV; 3 subunits of RNA polymerase complex, P3, PB1, and PB2; and 2 nonstructural proteins, NS1 and NS2. IAV has several subtypes based on the HA and NA proteins. Currently, there are 18 HA and 11 NA subtypes, of which H1 to H16 and N1 to N9 have been isolated from birds; the subtypes H17, H18, N10, and N11 have been identified in bats [
<xref rid="B6-viruses-11-00561" ref-type="bibr">6</xref>
,
<xref rid="B7-viruses-11-00561" ref-type="bibr">7</xref>
]. Out of these, only three HA (H1, H2, H3) and two NA (N1, N2) subtypes have been associated with human epidemics and are capable of sustained transmission [
<xref rid="B8-viruses-11-00561" ref-type="bibr">8</xref>
].</p>
<p>Influenza viruses spill over periodically from their primordial reservoirs (aquatic fowls) to the intermediate/secondary hosts to facilitate better adaptation and transmission and some of these hosts must remain as permanent niches for sustained IAV transmission. Other than birds, influenza A affects diverse mammalian populations such as pigs, seals, horses, dogs, cats, wild cats, minks, whales, and humans. The global pandemic of 2009 caused by swine-origin H1N1 was reported in swine, turkey, dogs, and cat [
<xref rid="B9-viruses-11-00561" ref-type="bibr">9</xref>
,
<xref rid="B10-viruses-11-00561" ref-type="bibr">10</xref>
,
<xref rid="B11-viruses-11-00561" ref-type="bibr">11</xref>
,
<xref rid="B12-viruses-11-00561" ref-type="bibr">12</xref>
,
<xref rid="B13-viruses-11-00561" ref-type="bibr">13</xref>
,
<xref rid="B14-viruses-11-00561" ref-type="bibr">14</xref>
]. Over the last few years, influenza infection landscape has widened to include new mammalian hosts such as bats, seals, and whales [
<xref rid="B6-viruses-11-00561" ref-type="bibr">6</xref>
,
<xref rid="B15-viruses-11-00561" ref-type="bibr">15</xref>
,
<xref rid="B16-viruses-11-00561" ref-type="bibr">16</xref>
,
<xref rid="B17-viruses-11-00561" ref-type="bibr">17</xref>
,
<xref rid="B18-viruses-11-00561" ref-type="bibr">18</xref>
]. Humans are the intermediate hosts for many diseases and zoonotic infections can occur in two ways: (1) isolated, dead-end infections which fail to establish and adapt as in the case of Ebola and hantaviruses (2) virus adapts and establishes in the intermediate or secondary hosts, and also sustain horizontal transmission, as in influenza [
<xref rid="B19-viruses-11-00561" ref-type="bibr">19</xref>
]. Such stable host-switch events lead to strong adaptations (ex. H5N1 and H9N2) which can resist the evolutionary pressure or the antagonistic environment posed by the novel hosts [
<xref rid="B20-viruses-11-00561" ref-type="bibr">20</xref>
,
<xref rid="B21-viruses-11-00561" ref-type="bibr">21</xref>
,
<xref rid="B22-viruses-11-00561" ref-type="bibr">22</xref>
]. The factors that govern the virulence, pathogenicity and transmission of influenza viruses could be multifactorial including both viral as well as host factors. Host factors such as availability of the receptors, the presence of host innate immune and other cellular factors, population size and its interconnectivity all govern the sustainability of influenza transmission [
<xref rid="B23-viruses-11-00561" ref-type="bibr">23</xref>
]. Influenza viral determinants undergo adaptive mutations, to expand or to limit the host range. Among the viral factors, HA glycoprotein is the primary factor determining the host range and interspecies transmission. Other viral proteins such as NP, PB2, and NS1 have also been involved in host range restriction and adaptation [
<xref rid="B24-viruses-11-00561" ref-type="bibr">24</xref>
]. For example, avian influenza polymerase possesses a limited function in human hosts and hence host-specific genetic changes have occurred to the polymerase subunits and NP during natural evolution. Though uncommon in recent times, IAV has been reported in ruminant species in the past. However, a tight host genetic bottleneck might have played a major role in the evolution, preventing the adaptive mutations necessary for the sustained transmission cycles in a novel host. Interestingly, the recently emerged influenza D, for which cattle are considered to be the primary reservoir, is widespread in cattle herds across the world. In this review, we conducted a comprehensive search of the available scientific reports/journal articles on influenza over the last century, with reference to bovine species, to understand the timeline of bovine IAV incidences with respect to human pandemics and epidemics, natural and experimental infections, seroepidemiological studies, and the role of bovine cellular and host factors in the evolution of influenza.</p>
</sec>
<sec id="sec2-viruses-11-00561">
<title>2. Literature Search Strategy</title>
<p>A literature search conducted mainly through PubMed (
<uri xlink:href="www.ncbi.nlm.nih.gov/entrez/query.fcgi">www.ncbi.nlm.nih.gov/entrez/query.fcgi</uri>
accessed January 20, 2019) using the keywords “influenza in bovines”, “influenza in cattle”, influenza in ruminants, and “bovine influenza” yielded 720, 717, 846, and 997 results, respectively. Another search with “bovine respiratory disease and influenza” retrieved 206 results. The searches were conducted with and without specifying the dates and the results retrieved were nearly the same. For the dates specified, the search started from 1900/01/01 to 2019/01/21. A flow chart showing the schematic representation of the comprehensive search is shown in
<xref ref-type="fig" rid="viruses-11-00561-f001">Figure 1</xref>
A with dates covered from 1900/01/01 to 2019/01/21. The search yielding the highest number of results (bovine influenza,
<italic>n</italic>
= 997) was used to further categorize the journal articles in different sections. Category-wise representation of the related articles obtained by the keyword search was shown in the Pie chart in
<xref ref-type="fig" rid="viruses-11-00561-f001">Figure 1</xref>
B. Furthermore, the IAV related studies in bovine (blue pie,
<italic>n</italic>
= 73) were broken down and illustrated in a donut graph to show the different subsections (IAV studies in bovine, IAV-bovine host factor interactions, seroprevalence, and use of IAV vector for bovine diseases). There were several reports on influenza infections and respiratory diseases in cattle from Russia, Germany, and Poland, most of which were in their native languages, and hence not accessible. Few of these journal articles carried English abstracts, which have been used in this review [
<xref rid="B25-viruses-11-00561" ref-type="bibr">25</xref>
,
<xref rid="B26-viruses-11-00561" ref-type="bibr">26</xref>
,
<xref rid="B27-viruses-11-00561" ref-type="bibr">27</xref>
]. Influenza D journal articles (
<italic>n</italic>
= 38) were reviewed separately.</p>
</sec>
<sec id="sec3-viruses-11-00561">
<title>3. A Brief Overview of Influenza Viral Ecology</title>
<p>Evolution and host adaptation strategies (tissue tropism, receptor binding preferences, environmental stability, and immune evasion) enable influenza virus to cross species barriers from their reservoir hosts. Furthermore, the host traits associated with the exposure (migration, and feeding behavior) and susceptibility (pre-existing immunity, species-specific host interference, age and body condition) are crucial in determining transmission efficiency and establishment of influenza in intermediate hosts. Migrating waterfowls and shorebirds have been the reservoirs of influenza viruses across the globe and almost, all influenza viruses affecting mammalian species originated from the avian gene pool [
<xref rid="B28-viruses-11-00561" ref-type="bibr">28</xref>
]. Pigs are extremely susceptible to both avian and human influenza viruses because of the mixed sialic acid receptor distribution in the swine respiratory tract, consisting of both α-2,3 and α-2,6 linkages and thus are excellent mixing vessels for the different subtypes of IAV, facilitating bidirectional transmission at the pig–human interface. Swine influenza in North American pig populations, particularly in Midwest US dates to 1930 when H1N1 was initially isolated in pigs [
<xref rid="B29-viruses-11-00561" ref-type="bibr">29</xref>
]. This classic lineage derived from 1918 Spanish pandemic flu, is a robust virus and continues to circulate in the swine and human populations. Besides, H3N2 avian–mammalian reassortant viruses [
<xref rid="B30-viruses-11-00561" ref-type="bibr">30</xref>
,
<xref rid="B31-viruses-11-00561" ref-type="bibr">31</xref>
], numerous variants of second generation reassortants between human pandemic H1N1 2009 and pig endemic H1N1 viruses, and H1N2 viruses have evolved over time and became well-established in swine populations [
<xref rid="B32-viruses-11-00561" ref-type="bibr">32</xref>
]. IAV subtype distribution in equine populations included H7N7 and H3N8. However, since the 1970s, H3N8 has been the predominant subtype circulating all over the world. Few exceptions were the avian-like A/equine/Jilin/1/89 (H3N8) which was antigenically different from the H3N8 viruses isolated between 1963 and 1991 [
<xref rid="B33-viruses-11-00561" ref-type="bibr">33</xref>
] and H5N1 isolation from a horse in Egypt [
<xref rid="B34-viruses-11-00561" ref-type="bibr">34</xref>
]. Dogs were affected by equine H3N8 and H3N2 [
<xref rid="B35-viruses-11-00561" ref-type="bibr">35</xref>
,
<xref rid="B36-viruses-11-00561" ref-type="bibr">36</xref>
] viruses, whereas cats were infected by avian influenza viruses, mostly H5N1 subtype [
<xref rid="B28-viruses-11-00561" ref-type="bibr">28</xref>
]. Aquatic mammals such as seals also harbored influenza A viruses in the early 1980s, particularly the H7N7 and H4N5, associated with low mortality and later, with H10N7 which caused massive deaths [
<xref rid="B17-viruses-11-00561" ref-type="bibr">17</xref>
,
<xref rid="B37-viruses-11-00561" ref-type="bibr">37</xref>
]. IAV subtypes H13N2 and H13N9 were isolated from the lungs and hilar nodes of the pilot whale [
<xref rid="B16-viruses-11-00561" ref-type="bibr">16</xref>
]. Minks were affected by both mammalian and avian origin influenza viruses such as H10N4, H10N7, H9N2, H5N1, swine variant H3N2, H1N2, and H1N1 pdm 2009 [
<xref rid="B38-viruses-11-00561" ref-type="bibr">38</xref>
,
<xref rid="B39-viruses-11-00561" ref-type="bibr">39</xref>
,
<xref rid="B40-viruses-11-00561" ref-type="bibr">40</xref>
,
<xref rid="B41-viruses-11-00561" ref-type="bibr">41</xref>
,
<xref rid="B42-viruses-11-00561" ref-type="bibr">42</xref>
,
<xref rid="B43-viruses-11-00561" ref-type="bibr">43</xref>
,
<xref rid="B44-viruses-11-00561" ref-type="bibr">44</xref>
].</p>
<p>A schematic diagram illustrating the potential mammalian hosts for the four types (IAV, IBV, ICV, and IDV) of influenza were given in
<xref ref-type="fig" rid="viruses-11-00561-f002">Figure 2</xref>
. Previous studies have reported that cattle influenza A isolates were found to be either human IAV or related to human IAV strains, especially the HA glycoprotein was similar to the prototypic human H2 and H3 subtypes [
<xref rid="B45-viruses-11-00561" ref-type="bibr">45</xref>
,
<xref rid="B46-viruses-11-00561" ref-type="bibr">46</xref>
]. Furthermore, swine IAV strain has also been isolated from cattle in Hungary, which indicated that source of infection could be human, swine or poultry as shown by the red dotted lines in
<xref ref-type="fig" rid="viruses-11-00561-f002">Figure 2</xref>
[
<xref rid="B47-viruses-11-00561" ref-type="bibr">47</xref>
]. However, all the reported cattle-origin IAV strains originated during 1971–1974, and very few studies were available using these cattle-origin strains [
<xref rid="B27-viruses-11-00561" ref-type="bibr">27</xref>
,
<xref rid="B48-viruses-11-00561" ref-type="bibr">48</xref>
]. Taken together, the subtype distribution of influenza A over the last 45 years clearly indicated that influenza A viruses established its niche and has evolved in almost all mammalian hosts at the human–animal interface, except in bovine species.</p>
<p>While IAV evolved in multiple mammalian species, IBV and ICV primarily infected humans (
<xref ref-type="fig" rid="viruses-11-00561-f002">Figure 2</xref>
). IBV has no subtypes but diverged into two major lineages causing localized epidemics affecting humans and seals [
<xref rid="B49-viruses-11-00561" ref-type="bibr">49</xref>
,
<xref rid="B50-viruses-11-00561" ref-type="bibr">50</xref>
,
<xref rid="B51-viruses-11-00561" ref-type="bibr">51</xref>
]. The susceptibility of domestic piglets to influenza B virus has been reported as early as in 1966 [
<xref rid="B52-viruses-11-00561" ref-type="bibr">52</xref>
]. Furthermore, serological screening of Midwest US swine herds from 2010–2012 demonstrated that 38.5% (20/52) of sampled farms and 7.3% (41/560) of tested swine sera were positive to IBV [
<xref rid="B53-viruses-11-00561" ref-type="bibr">53</xref>
]. Antibodies against IBV were also reported in dogs and horses [
<xref rid="B54-viruses-11-00561" ref-type="bibr">54</xref>
,
<xref rid="B55-viruses-11-00561" ref-type="bibr">55</xref>
,
<xref rid="B56-viruses-11-00561" ref-type="bibr">56</xref>
]. Further studies are needed to investigate whether IBV affects other mammalian hosts and till date, IBV was not reported in ruminants except for a seroprevalence reported in the USA (B/Johannesburg/59) and in Italy (B/Bonn and B/Roma/1/59) [
<xref rid="B47-viruses-11-00561" ref-type="bibr">47</xref>
].</p>
<p>Compared to IAV and IBV, ICV infections caused mild disease and were found to have coexisted with IAV and IBV in humans [
<xref rid="B57-viruses-11-00561" ref-type="bibr">57</xref>
]. Serological screening in Japan and Great Britain revealed ICV incidences in pigs in the 1990s [
<xref rid="B58-viruses-11-00561" ref-type="bibr">58</xref>
,
<xref rid="B59-viruses-11-00561" ref-type="bibr">59</xref>
]. Natural infection of ICV in pigs was also reported from China in 1981 [
<xref rid="B60-viruses-11-00561" ref-type="bibr">60</xref>
]. Serological evidence of ICV was reported in Midwest equine populations of the USA [
<xref rid="B61-viruses-11-00561" ref-type="bibr">61</xref>
]. Surprisingly, ICV was also identified in the respiratory samples of cattle from Western Canada and North America and complete genome of bovine ICV has been isolated recently from one of the respiratory samples collected from 2016–18 in North America [
<xref rid="B62-viruses-11-00561" ref-type="bibr">62</xref>
,
<xref rid="B63-viruses-11-00561" ref-type="bibr">63</xref>
]. While the transmission of ICV from human to pigs/horses/cattle or vice versa is still under debate (
<xref ref-type="fig" rid="viruses-11-00561-f002">Figure 2</xref>
), further investigation is warranted to determine its host range, virus tropism, and transmission potential.</p>
<p>Recently emerged “type D influenza” virus (IDV) demonstrated 50% overall amino acid identity to ICV and displays distinct differences from influenza A and B viruses. Influenza D virus was originally isolated from a piglet showing influenza-like symptoms in Oklahoma in 2011; however, IDV is more widespread in cattle herds than pigs in North America and parts of Eurasia [
<xref rid="B64-viruses-11-00561" ref-type="bibr">64</xref>
,
<xref rid="B65-viruses-11-00561" ref-type="bibr">65</xref>
,
<xref rid="B66-viruses-11-00561" ref-type="bibr">66</xref>
,
<xref rid="B67-viruses-11-00561" ref-type="bibr">67</xref>
,
<xref rid="B68-viruses-11-00561" ref-type="bibr">68</xref>
]. Bovines were considered to be the primary reservoir for IDV with periodic spill over to other mammalian hosts such as pigs, horses, camels and small ruminants [
<xref rid="B61-viruses-11-00561" ref-type="bibr">61</xref>
,
<xref rid="B69-viruses-11-00561" ref-type="bibr">69</xref>
,
<xref rid="B70-viruses-11-00561" ref-type="bibr">70</xref>
,
<xref rid="B71-viruses-11-00561" ref-type="bibr">71</xref>
]. High seroprevalence of IDV was reported in occupational workers and recently IDV genome was detected from a respiratory sample of a pig farm worker, and also from bioaerosol samples derived from high traffic human environments such as emergency hospital rooms and airports, which implicate its public health significance [
<xref rid="B71-viruses-11-00561" ref-type="bibr">71</xref>
,
<xref rid="B72-viruses-11-00561" ref-type="bibr">72</xref>
,
<xref rid="B73-viruses-11-00561" ref-type="bibr">73</xref>
]. Collectively, the comprehensive analyses of the host range of four influenza types suggested that cattle are the primary hosts for IDV and could be susceptible to the other three influenza types (
<xref ref-type="fig" rid="viruses-11-00561-f002">Figure 2</xref>
).</p>
</sec>
<sec id="sec4-viruses-11-00561">
<title>4. Role of Influenza in Bovine Respiratory Diseases and Evidence of Zoonosis/Reverse Zoonosis</title>
<p>Since time immemorial, domestic cattle are the backbone of the food and agriculture and their roles remained equally significant in the modern world. However, cattle distribution and the production and consumption of milk and meat are uneven across the different countries of the world. Among livestock, pigs have been the mixing vessels for avian and human influenza A viruses and the association of humans with swine facilitated the bidirectional transmission of influenza at the pig–human interface. Interestingly, cattle have been domesticated by humans 10,500 years ago [
<xref rid="B74-viruses-11-00561" ref-type="bibr">74</xref>
], whereas pigs were domesticated 9000 years ago [
<xref rid="B75-viruses-11-00561" ref-type="bibr">75</xref>
]. Moreover, the close association of humans with cattle should naturally make them vulnerable to bidirectional influenza transmission, which is not the case. This raises numerous questions for which the answers are not clearly known yet. Are cattle susceptible to influenza A viruses? Despite the mutational robustness, rapid evolution, and diverse host ecology of the influenza A virus, why ruminants were spared from the infection? What happened to the cattle associated influenza A viruses emerged during the early 1970s? Whether or not the virus surpassed/escaped species-specific host immune selection pressure? The purpose of this review is to seek answers to these questions by performing comprehensive analyses on the past influenza incidences occurred in ruminants.</p>
<p>The first report on influenza disease in bovines dated to 1949 from Japan; however, no cattle-origin IAV was isolated from these outbreaks [
<xref rid="B76-viruses-11-00561" ref-type="bibr">76</xref>
]. Concurrent to human pandemics, cattle also exhibited influenza-like respiratory disease and several cattle influenza A strains were isolated from different parts of Europe and Russia around this time. A few of these strains had HA and NA glycoproteins similar to prototypic human H2 and H3 subtypes, while others were dissimilar to human IAV [
<xref rid="B46-viruses-11-00561" ref-type="bibr">46</xref>
,
<xref rid="B47-viruses-11-00561" ref-type="bibr">47</xref>
]. It could be believed that IAV transmission from humans to cattle occurred in the past. However, these cattle influenza A viruses failed to adapt and establish their niche for a sustained transmission and evolution due to stringent transmission bottlenecks.</p>
<p>The notable respiratory tract infections of cattle in the past emerged during 1950–1970 which included bovine parainfluenza 3 (BPIV3), bovine herpesviruses (BHV) such as infectious bovine rhinotracheitis virus (IBR), bovine viral diarrhea virus (BVDV), and bovine respiratory syncytial virus (BRSV) [
<xref rid="B77-viruses-11-00561" ref-type="bibr">77</xref>
,
<xref rid="B78-viruses-11-00561" ref-type="bibr">78</xref>
,
<xref rid="B79-viruses-11-00561" ref-type="bibr">79</xref>
,
<xref rid="B80-viruses-11-00561" ref-type="bibr">80</xref>
,
<xref rid="B81-viruses-11-00561" ref-type="bibr">81</xref>
,
<xref rid="B82-viruses-11-00561" ref-type="bibr">82</xref>
,
<xref rid="B83-viruses-11-00561" ref-type="bibr">83</xref>
]. These viral etiologies coupled with the secondary bacterial infections constituted bovine respiratory disease complex, a highly significant respiratory disease condition causing high morbidity in cattle and huge economic loss to the cattle farmers in North America [
<xref rid="B84-viruses-11-00561" ref-type="bibr">84</xref>
]. Bovine respiratory disease (BRD) is a multifactorial disease caused due to a single or combination of factors such as environmental, host, managemental, and infectious factors, posing significant economic burden affecting the cattle industry in North America. The morbidity rate of BRD is about 70–80% in the USA, amounting to a loss of $23.60 per morbid calf [
<xref rid="B84-viruses-11-00561" ref-type="bibr">84</xref>
]. Other than BVDV, BHV, BRSV, BPIV3 against which commercial multivalent vaccines were well developed, metagenome sequencing of the respiratory samples from cattle identified other viral agents such as bovine rhinitis viruses, bovine reovirus, bovine corona (BCV) and enteroviruses [
<xref rid="B85-viruses-11-00561" ref-type="bibr">85</xref>
].</p>
<p>Metagenomic virome sequencing in symptomatic and asymptomatic feedlot cattle detected BHV1, BVDV, BRSV, BCV, and IDV in symptomatic animals at a rate of 2.1, 8.5, 2.1, 29.8 and 17.0% respectively and found IDV as a moderate risk factor in BRD complex (
<italic>p</italic>
< 0.15) [
<xref rid="B85-viruses-11-00561" ref-type="bibr">85</xref>
]. Even though a low seroprevalence (0.6%) of influenza C in bovines was reported around the late 1970s [
<xref rid="B56-viruses-11-00561" ref-type="bibr">56</xref>
], influenza C prevalence in cattle or any other ruminants was not reported elsewhere until 2016. Recently, ICV has been detected in 64/1525 (4.2%) of bovine respiratory tract samples (nasal swabs and lung specimens) collected from animals suffering from acute respiratory disease during October 2016–January 2018 by RT-qPCR [
<xref rid="B62-viruses-11-00561" ref-type="bibr">62</xref>
]. Furthermore, sequencing of 590 base pair (bp) fragment of the matrix gene from 12 ICV-positive samples revealed 98% sequence identity between strains and 95% identity to the human ICV strains, which clearly indicates the bidirectional transmission of ICV at the human–cattle interface and reverse zoonotic potential [
<xref rid="B62-viruses-11-00561" ref-type="bibr">62</xref>
]. Complete genome sequencing of one of the positive ICV isolates has been performed and designated as C/bovine/Montana/12/2016 [
<xref rid="B86-viruses-11-00561" ref-type="bibr">86</xref>
]. Within the 12 ICV strong positive samples, four samples also harbored IDV. Interestingly, metagenome sequencing of the paired nasal swab and tracheal washes from the Western Canadian beef cattle also detected influenza D associated with BRD, however, influenza C was detected from a cattle without respiratory disease [
<xref rid="B63-viruses-11-00561" ref-type="bibr">63</xref>
,
<xref rid="B87-viruses-11-00561" ref-type="bibr">87</xref>
]. While it is largely unknown whether ICV and IDV could undergo reassortment in bovines to cause disease and facilitate cross-species transmission, the IDV involvement in the BRD complex has been established beyond doubt. The recent developments in IDV infection landscape such as serological evidence, and the recent detection of IDV genome in occupational workers coupled with presence of IDV in the bioaerosol samples of the high traffic human environments such as airport and hospital emergency room [
<xref rid="B71-viruses-11-00561" ref-type="bibr">71</xref>
,
<xref rid="B72-viruses-11-00561" ref-type="bibr">72</xref>
,
<xref rid="B73-viruses-11-00561" ref-type="bibr">73</xref>
] indicate the possibility of a sustained influenza D transmission at the cattle–human interface. Taken together, these findings suggest that interspecies transmission could occur between cattle and humans and involves a potential risk of zoonosis/reverse zoonosis.</p>
</sec>
<sec id="sec5-viruses-11-00561">
<title>5. Natural Cases of Influenza A in Bovines</title>
<p>First recorded evidence of influenza in cattle occurred in 1949, where 160,000 cattle were infected in the western and middle part of Japan [
<xref rid="B76-viruses-11-00561" ref-type="bibr">76</xref>
]. This incidence of cattle influenza ran for a short course with recovery in 2–3 days and the documented symptoms included high temperature (40–42 °C), blepharitis, nasal discharge, anorexia, tympanites, pneumonia, joint problems, and a decrease in lactation. This report also mentioned about some major cattle influenza outbreaks occurred previously in the Fall of 1889 and 1893, and some minor outbreaks in 1914–1916 in Japan [
<xref rid="B76-viruses-11-00561" ref-type="bibr">76</xref>
]. The same study also mentioned an experimental infection of 11 calves, using nasal discharge/defibrinated blood from diseased animals and the successful virus isolation in mice, characterized by few deaths and lung and liver lesions at the 20th serial passage.</p>
<p>The first report on influenza virus isolation from animals was documented by Romvary et al. [
<xref rid="B88-viruses-11-00561" ref-type="bibr">88</xref>
] from Hungary in 1962, which described the isolation of IAV strains similar to human H2 HA glycoprotein from pigs and sheep during 1959–1960. Romvary et al. [
<xref rid="B46-viruses-11-00561" ref-type="bibr">46</xref>
] also isolated porcine IAV strains bearing human H3 HA glycoprotein. Lopez and Woods reviewed influenza viruses from cattle and the first cattle-origin influenza isolate was reported by Barb et al., 1962, cited in [
<xref rid="B47-viruses-11-00561" ref-type="bibr">47</xref>
]. Furthermore, there were reports on cattle influenza from several countries primarily from the old Union of Soviet Socialist Republics (USSR), and the publications were mostly in the Russian language, with the rare occurrence of English abstract and keywords. Among these, the earliest report was on the seroepidemiological study of influenza in domestic species of animals in 1969 [
<xref rid="B25-viruses-11-00561" ref-type="bibr">25</xref>
]. During the period 1970–80, cattle isolates of influenza A have been reported from different parts of the world, post/around the time 1968 Hong Kong H3N2 pandemic occurred in humans. In 1973, the isolation and identification of the A/Hong Kong/1/1968 (H3N2) virus from cattle suffering respiratory diseases were reported in Russia [
<xref rid="B45-viruses-11-00561" ref-type="bibr">45</xref>
]. The earliest cattle influenza A strain studied under experimental conditions was A/calf/Duschambe/55/71 (H3N2) from Russia. This strain was derived from a natural case of respiratory illness in a terminally ailing calf and was isolated in embryonated chicken eggs [
<xref rid="B45-viruses-11-00561" ref-type="bibr">45</xref>
]. Both H1N1 and H3N2 strains were isolated from cattle later. Few of these isolated strains reported include Sw/Shope (H1N1) from Hungary and several H3N2 strains from the USSR. The two viruses isolated from Hungary and the USSR possessed type 2 neuraminidase; however, HA glycoproteins were unidentified [
<xref rid="B47-viruses-11-00561" ref-type="bibr">47</xref>
]. The H3N2 strains were similar to the prototypic human H3N2 strain A/Hong Kong/1/1968 (Schild G, C., World Influenza Center, London). Furthermore, studies on influenza outbreaks in cattle occurred in Russia in 1973, and antigenic characteristics of the influenza viruses isolated from the birds and animals of the USSR were reported, both of which were in non-English languages [
<xref rid="B89-viruses-11-00561" ref-type="bibr">89</xref>
,
<xref rid="B90-viruses-11-00561" ref-type="bibr">90</xref>
]. Another study on the isolation of IAV strains from nasal swabs and lung samples of acutely ill cattle were reported from Budapest, Hungary in 1974 [
<xref rid="B46-viruses-11-00561" ref-type="bibr">46</xref>
] characterized by mortality and the disease lasted about 1–3 weeks. The affected animals included calves (4–6 months of age), young, and beef cattle, who suffered epizootic cough associated with respiratory symptoms such as nasal discharge, lacrimation, anorexia, and lethargy. Gross lesions involved focal acute catarrhal pneumonia, alveolar and interstitial emphysema, bronchitis with hemorrhages due to asphyxia and no extrapulmonary lesions. Interestingly, there was no bacterial involvement reported in this study and the virus isolation using embryonated chicken eggs resulted in the death of the embryos at 4th day [
<xref rid="B46-viruses-11-00561" ref-type="bibr">46</xref>
]. Furthermore, in 1976 and 1977, there were studies from Russia, describing cattle influenza [
<xref rid="B91-viruses-11-00561" ref-type="bibr">91</xref>
,
<xref rid="B92-viruses-11-00561" ref-type="bibr">92</xref>
]. In 1978, Wagner et al. [
<xref rid="B93-viruses-11-00561" ref-type="bibr">93</xref>
] described influenza and enzootic bronchopneumonia in cattle from Germany. In Germany, the reports on examination of cattle for influenza and pathological examination of the lungs from cases of bovine influenza were available as early as 1977 [
<xref rid="B91-viruses-11-00561" ref-type="bibr">91</xref>
,
<xref rid="B94-viruses-11-00561" ref-type="bibr">94</xref>
]. However, no further reports on influenza-related respiratory/non-respiratory diseases in bovine/any ruminant species were available until the late 20th century.</p>
<p>In 1997, an idiopathic condition manifested in dairy cows in Bristol, southwest England with a sporadic drop in milk production [
<xref rid="B95-viruses-11-00561" ref-type="bibr">95</xref>
]. Brown et al. [
<xref rid="B96-viruses-11-00561" ref-type="bibr">96</xref>
,
<xref rid="B97-viruses-11-00561" ref-type="bibr">97</xref>
] also reported seroconversion against influenza A in cattle from Great Britain, which was markedly associated with reduced milk yield and respiratory disease. However, the virus isolation from these seroconverted animals was unsuccessful. Interestingly, these cattle seroconverted to influenza A virus alone, with no detectable antibodies against BVD, IBR, PI3, and BRSV, suggestive of the etiological role of influenza A in the reduction of milk yield. Furthermore, in 1999, Gunning et al. [
<xref rid="B98-viruses-11-00561" ref-type="bibr">98</xref>
] also reported that the natural cases of influenza in milking cows increased with an annual incidence rate of 10–20% in some herds of England with a sudden drop in milk yield, mild pyrexia, anorexia, occasional respiratory signs such as nasal discharge and increased respiratory rate. High levels of neutrophils and haptoglobin were present in the blood in most of these cases. Serological screening of paired sera collected from five cattle herds with the same clinical history against IBR, PI3, BRSV, adenovirus,
<italic>M. bovis</italic>
,
<italic>H. somnus</italic>
,
<italic>C. psittaci</italic>
,
<italic>C. brunetti</italic>
,
<italic>P. hemolytica</italic>
,
<italic>P. trehalosi</italic>
, treponemes revealed antibodies against BRSV and PI3 in all herds, while BVD and IBR were detected only in some herds. On the other hand, these cattle sera demonstrated significantly high antibody titer to two human IAVs: 60% for A/England/333/80 (H1N1) and 65% for A/England/427/88 (H3N2) and only 5% of the cows were seronegative against both viruses [
<xref rid="B98-viruses-11-00561" ref-type="bibr">98</xref>
]. These observations clearly indicated the exposure and natural susceptibility of cattle to human influenza A viruses.</p>
<p>Concurrently, Dr Ian Brown and his colleagues at Veterinary Laboratories Agency near Weybridge, United Kingdom reported the presence of influenza genes in cattle around the late 1990s (
<uri xlink:href="https://www.nature.com/news/1998/020107/full/news020107-4.html">https://www.nature.com/news/1998/020107/full/news020107-4.html</uri>
. accessed January 21, 2019). However, no related peer-reviewed records were available. In Northern Ireland, a seroepidemiological study conducted on 84 paired acute and convalescent cattle sera collected from 17 outbreaks, against A/England/333/80 (HIN1) and A/England/427/88 (H3N2) during 1998–1999, with clinical manifestations of respiratory disease, diarrhea, and milk drop syndrome demonstrated seroconversion in 56.5 and 58.8% of the convalescent sera against H1N1 and H3N2 respectively. While H3N2 antibody titers were higher compared to H1N1 in general, this study also revealed a higher rate of seropositivity against human H3N2 over porcine H3N2 strains. However, virus isolation in specific pathogen-free chicken embryos was unsuccessful from 142 cattle with similar clinical manifestations [
<xref rid="B99-viruses-11-00561" ref-type="bibr">99</xref>
]. The association of human influenza A viruses with milk drop in cows was prevalent in the early 2000s. In 2008, Crawshaw et al. [
<xref rid="B100-viruses-11-00561" ref-type="bibr">100</xref>
] demonstrated rising antibody titers against same human influenza viruses, A/England/333/80 (H1N1) and A/England/427/88 (H3N2) from a Holstein Friesian herd suffering from acute fall in milk production and tested seronegative against BRSV, BVD, IBR, and PI3 viruses. The loss of milk production (difference in the mean milk production between the uninfected animals and affected animals) was measured to be 159.9 L, which accounted for 2% of the lactation yield per cow. Analyses of the clinical data revealed pyrexia and increased respiratory noise in the high seropositive animals with no detectable difference in respiratory rate. The authors of this study also discussed an unpublished data on contemporary evidence of influenza A in cattle, detected by RT-PCR in a lung tissue sample from a calf suffering from pneumonia [
<xref rid="B100-viruses-11-00561" ref-type="bibr">100</xref>
]. However, another study conducted to find the infectious etiology of the fatal cases of calf pneumonia in 48 calves from 27 herds around this time, did not detect influenza A virus. On the contrary, this study demonstrated that severe lung pathology in calves is due to non-influenza factors such as Mannheimia–Pasteurella in 36/40 (90%) cases;
<italic>Arcanobacterium pyogenes</italic>
in 16/40 (40%) cases;
<italic>Mycoplasma bovis</italic>
in 12/40 (30%) cases; bovine respiratory syncytial virus in 4/40 (10%) cases;
<italic>Histophilus somni</italic>
in 2/40 (5%) cases, while bovine herpesvirus-1, bovine viral diarrhea virus, and parainfluenza virus-3 were detected in 1/40 (2.5%) cases [
<xref rid="B101-viruses-11-00561" ref-type="bibr">101</xref>
]. Taken together, human-like influenza A viruses circulated in cattle at two different time frames: 1970–1981, and 1997–2006 in different parts of the world, clearly indicating that cross-species transmission occurred at the human–cattle interface. Relevant references pertaining to the natural infections or outbreaks of cattle IAV were listed in chronological order in
<xref rid="viruses-11-00561-t001" ref-type="table">Table 1</xref>
.</p>
<p>A timeline of all the reported cattle epizootics and respiratory diseases with influenza viral etiology plotted in relation to the known human influenza pandemics is illustrated in
<xref ref-type="fig" rid="viruses-11-00561-f003">Figure 3</xref>
[
<xref rid="B1-viruses-11-00561" ref-type="bibr">1</xref>
,
<xref rid="B45-viruses-11-00561" ref-type="bibr">45</xref>
,
<xref rid="B46-viruses-11-00561" ref-type="bibr">46</xref>
,
<xref rid="B47-viruses-11-00561" ref-type="bibr">47</xref>
,
<xref rid="B48-viruses-11-00561" ref-type="bibr">48</xref>
,
<xref rid="B56-viruses-11-00561" ref-type="bibr">56</xref>
,
<xref rid="B76-viruses-11-00561" ref-type="bibr">76</xref>
,
<xref rid="B88-viruses-11-00561" ref-type="bibr">88</xref>
,
<xref rid="B90-viruses-11-00561" ref-type="bibr">90</xref>
,
<xref rid="B92-viruses-11-00561" ref-type="bibr">92</xref>
,
<xref rid="B93-viruses-11-00561" ref-type="bibr">93</xref>
,
<xref rid="B95-viruses-11-00561" ref-type="bibr">95</xref>
,
<xref rid="B96-viruses-11-00561" ref-type="bibr">96</xref>
,
<xref rid="B97-viruses-11-00561" ref-type="bibr">97</xref>
,
<xref rid="B100-viruses-11-00561" ref-type="bibr">100</xref>
,
<xref rid="B108-viruses-11-00561" ref-type="bibr">108</xref>
,
<xref rid="B109-viruses-11-00561" ref-type="bibr">109</xref>
,
<xref rid="B110-viruses-11-00561" ref-type="bibr">110</xref>
,
<xref rid="B111-viruses-11-00561" ref-type="bibr">111</xref>
,
<xref rid="B112-viruses-11-00561" ref-type="bibr">112</xref>
,
<xref rid="B113-viruses-11-00561" ref-type="bibr">113</xref>
,
<xref rid="B114-viruses-11-00561" ref-type="bibr">114</xref>
]. The sequence of events indicated that most of the influenza-related outbreaks in cattle with clinical manifestations such as bronchopneumonia, epizootic cough, respiratory distress, and sporadic milk drop have occurred, almost concurrently with some of the human pandemics (
<xref ref-type="fig" rid="viruses-11-00561-f003">Figure 3</xref>
). Sporadic milk drop in cows reported in different parts of Europe demonstrated a strong causal association with significant rising antibody titers against human H1N1 and H3N2 viruses [
<xref rid="B100-viruses-11-00561" ref-type="bibr">100</xref>
]. The fact that a few cattle IAV strains isolated around the 1970s were related to the prototypic H2 and H3 subtypes of human IAV and the presence of IAV and IBV antibodies in domestic animals indicates that human influenza-like viruses circulated in cattle and other domesticated animals in the past.</p>
</sec>
<sec id="sec6-viruses-11-00561">
<title>6. Experimental Infections of Influenza A in Ruminant Species</title>
<p>Several experimental studies have been performed in the past to study the antibody responses in different species of domestic animals. In 1956, an experimental infection by direct inoculation of influenza A PR8 strain and Newcastle disease virus (NDV) into the lactiferous sinus of goat mammary glands resulted in the production of neutralizing antibodies in the milk and blood. This study also found that influenza neutralizing antibody level in the blood phased out slowly compared to the NDV even after surgical removal of the mammary gland [
<xref rid="B115-viruses-11-00561" ref-type="bibr">115</xref>
]. In 1974, experimental inoculation of seronegative yak with human IAV such as A/Hong Kong/1/68 (H3N2), A/England/42/72 (H3N2), and A/equine/Prague/1/56 resulted in serological response against all these strains [
<xref rid="B103-viruses-11-00561" ref-type="bibr">103</xref>
]. Experimental inoculation of calves with A/csf/Udmurtiia/116/73 was reported in 1977 [
<xref rid="B27-viruses-11-00561" ref-type="bibr">27</xref>
]. Nakamura et al. [
<xref rid="B110-viruses-11-00561" ref-type="bibr">110</xref>
] experimentally infected calves with influenza B virus by aerosol and intravenous routes to determine the serum non-specific inhibitors of influenza in domestic animals. Several experimental studies have been reported from cattle in the 20th century, and some of the reports were only available in non-English languages [
<xref rid="B25-viruses-11-00561" ref-type="bibr">25</xref>
,
<xref rid="B26-viruses-11-00561" ref-type="bibr">26</xref>
,
<xref rid="B27-viruses-11-00561" ref-type="bibr">27</xref>
]. Experimental infection in different mammalian species such as calves and lambs to characterize the antibody responses revealed appreciable hemagglutination inhibition (HI) antibody titers in calves after primary infection, leading to an anamnestic response after challenge with a homologous antigen [
<xref rid="B110-viruses-11-00561" ref-type="bibr">110</xref>
].</p>
<p>Experimental infection using human and swine IAV subtypes caused variable responses in causing respiratory disease in cattle. In 1977, calves experimentally infected with three Hong Kong-like H3N2 strains (A/Michigan/l/72, A/England/42/72, and A/Aichi/2/68) compared to the calf H3N2 strain, A/calf/Duschambe/55/71 demonstrated no respiratory disease by human IAV, while A/calf/Duschambe/55/71 caused disease with nasal discharge, cough, and mild rhinitis. However, virus shedding was detected for A/Aichi/2/68 and A/calf/Duschambe/55/71 for five and seven days respectively, indicating that calves were susceptible to human IAV. The A/calf/Duschambe/55/71 strain was considered to be a host range variant of Hong Kong/68 strains isolated from humans [
<xref rid="B48-viruses-11-00561" ref-type="bibr">48</xref>
]. Furthermore, intranasal inoculation of live swine influenza virus (SIV) A/sw/IL/75 (H1N1) in calves caused respiratory disease with virus shedding, contact transmission to sentinel animals, seroconversion at 9 days post-infection (dpi) and virus neutralization antibody development at 14 and 21 dpi [
<xref rid="B105-viruses-11-00561" ref-type="bibr">105</xref>
]. Another study using recombinant vaccinia virus expressing SIV-HA (A/NJ/11/76) developed antibodies when inoculated to cattle, sheep, and poultry, while the wild-type virus did not cause any antibody response. No contact transmission was reported by the wild-type or recombinant virus in these species [
<xref rid="B104-viruses-11-00561" ref-type="bibr">104</xref>
].</p>
<p>The pathogenesis and transmission of avian influenza viruses in bovine species have also been studied previously. Cattle egrets share a symbiotic relationship with cattle and forages along with cattle and other livestock species. Recently, highly pathogenic avian influenza virus (HPAIV) was isolated from cattle egret in Egypt near broiler chicken farms [
<xref rid="B116-viruses-11-00561" ref-type="bibr">116</xref>
]. Therefore, it would be noteworthy to study the epidemiological role of the cattle egrets in the transmission of IAV. Cattle egrets were intranasally challenged with an HPAIV (A/duck/Vietnam/40D/04 (H5N1)) to study its role in H5N1 outbreaks in Vietnam and to investigate the virulence of the strain. The egrets contracted the infection, and some succumbed to death in a week. However, no contact transmission occurred in the co-housed chickens [
<xref rid="B107-viruses-11-00561" ref-type="bibr">107</xref>
]. Despite the close association of cattle egrets or similar intermediate hosts of influenza, it is interesting that cattle are refractory to influenza. In 2007, experimental inoculation of calves with HPAIV strain, A/cat/Germany/R606/2006 (H5N1) demonstrated 100% seroconversion with neutralizing antibodies against the homologous strain. This study reported very low viral shedding as determined by the titration of nasal swab fluid in embryonated chicken eggs and MDCK cells. Virus neutralization and the ELISA tests conducted at 3 months post inoculation demonstrated seroconversion in all the inoculated calves and one contact animal, thus providing evidence for contact transmission [
<xref rid="B106-viruses-11-00561" ref-type="bibr">106</xref>
]. On the contrary, another experimental infection of six beef calves and two ponies with A/equine/Kentucky/91 (H3N8) did not cause any viral shedding, clinical symptoms, or disease in calves compared to the ponies [
<xref rid="B117-viruses-11-00561" ref-type="bibr">117</xref>
].
<xref rid="viruses-11-00561-t001" ref-type="table">Table 1</xref>
. describes the experimental infection conducted in cattle in chronological order. These experimental studies show that ruminants could be infected with IAV derived from avian, swine, and human IAV subtypes.</p>
</sec>
<sec id="sec7-viruses-11-00561">
<title>7. Seroprevalence Studies of Influenza A in Bovine Species</title>
<p>Influenza serosurveillance studies have been conducted in bovines and other animal species over time in different parts of Eurasia. In Romania, epidemiological studies conducted in humans and animals during the early 1960s by Bronitki et al. [
<xref rid="B110-viruses-11-00561" ref-type="bibr">110</xref>
,
<xref rid="B118-viruses-11-00561" ref-type="bibr">118</xref>
] demonstrated influenza A and B specific antibodies in several wild and domestic animals including cattle, and sheep. In the early 1970s, naturally occurring antibodies against the H3N2 viruses were detected in the crossbred yak, cattle and water buffaloes in Kathmandu, (Nepal) and goats and cattle in West Bengal (India) as demonstrated by the single radial immunodiffusion tests [
<xref rid="B103-viruses-11-00561" ref-type="bibr">103</xref>
]. The precipitation and complement fixation tests to study the incidence of the A/Port Chalmers/73 (H3N2), A2/Hong Kong/1/68 and PR8 in fourteen animal species from Ottawa area in Canada revealed seropositivity in six species such as dog, cat, rabbit, goat, chipmunk, and sheep [
<xref rid="B119-viruses-11-00561" ref-type="bibr">119</xref>
]. In Great Britain, a serosurveillance study conducted on swine and bovine samples collected during September 1973–July 1977, against A/Swine/Wisconsin/66 (HSwlN1), A/Swine/1976/30 (HSwlN1), A/Hong Kong/1/68 (human H3N2), A/Port Chalmers/73 (human H3N2) demonstrated seropositive swine samples against human H3N2 viruses with 4.5% (1974), 1.7% (1975) and 2.3% (1976) against A/Port Chalmers/73 suggesting the evidence for reverse zoonosis. On the contrary, none of the bovine sera was positive against the tested swine (H1N1) and human (H3N2) influenza viruses [
<xref rid="B120-viruses-11-00561" ref-type="bibr">120</xref>
]. Seroprevalence study conducted in different species of animals involving cattle, horses, pigs, dogs, cats, minks, and rats over the period 1975–77 in Japan, demonstrated antibodies against 15 subtypes of influenza A viruses among 16 subtypes that were tested [
<xref rid="B111-viruses-11-00561" ref-type="bibr">111</xref>
]. In the case of cattle, out of 728 serum samples, only 1.5% and 1% were seropositive against H0 and H3 Aichi respectively and were seronegative against other subtypes [
<xref rid="B111-viruses-11-00561" ref-type="bibr">111</xref>
]. In 1978, a seroprevalence study of influenza B and C viruses in different mammalian species including cattle conducted in Japan revealed that all cattle sera were negative to IBV and only 0.6% seropositive samples against ICV [
<xref rid="B56-viruses-11-00561" ref-type="bibr">56</xref>
].</p>
<p>In Northern Ireland, around 200 sera collected from crossbred and indigenous sheep breeds to study the seroprevalence of influenza A and other viruses (parainfluenza types 1, 2, and 3, respiratory syncytial virus, bovine adenovirus, Maedi-visna virus, and bovine viral diarrhea virus) demonstrated no antibodies against influenza A, Maedi-visna and parainfluenza virus 1 and 2 [
<xref rid="B121-viruses-11-00561" ref-type="bibr">121</xref>
]. A review of the published pathological and serological studies by Lopez and Woods, reported seroprevalence of influenza A and B viruses (complement fixation and hemagglutination inhibition tests) in ruminants from different parts of the world such as the USA, Italy, Rumania, USSR, Nepal, India, and Hungary [
<xref rid="B47-viruses-11-00561" ref-type="bibr">47</xref>
,
<xref rid="B122-viruses-11-00561" ref-type="bibr">122</xref>
].</p>
<p>Another serological study conducted in five calves inoculated with swine influenza virus showed a significant association between the mean diameter of the hemolysis zone obtained by the single radial hemolysis (SRH) test and the geometric mean of the HI titer after periodate treatment and receptor-destroying enzyme [
<xref rid="B123-viruses-11-00561" ref-type="bibr">123</xref>
]. In 1974, serological screening against human influenza viruses such as A/Hong Kong/1/68 (H3N2), and A/England/42/72 (H3N2), conducted in West Bengal, India (cattle, goats) and Kathmandu, Nepal (water buffaloes, cattle) also showed seropositivity against the H3 antigens by single radial immunodiffusion test [
<xref rid="B103-viruses-11-00561" ref-type="bibr">103</xref>
]. While this study demonstrated seroprevalence against H3 antigens, no antibodies were detected against the equine influenza A virus, A/equine/Prague/1/56 (Heq1 Neq1) in human, goat, cattle, chicken, and dog sera [
<xref rid="B103-viruses-11-00561" ref-type="bibr">103</xref>
]. Another serological survey involving 177 paired calf sera from 1978–1981 showed that 3.4% of the calves were seropositive to swine influenza virus [
<xref rid="B122-viruses-11-00561" ref-type="bibr">122</xref>
]. A retrospective serological survey conducted in Minnesota, USA involving 2,345 bovine sera against H1 subtype-specific antigen revealed 27% positive and 31% low positive samples, without any clear evidence of clinical infections [
<xref rid="B114-viruses-11-00561" ref-type="bibr">114</xref>
]. This study also found that peak titers occurred during September–November, and February–March [
<xref rid="B114-viruses-11-00561" ref-type="bibr">114</xref>
]. In Egypt, seroprevalence against avian influenza has been demonstrated in samples collected from different animal species such as goat, cattle, buffaloes, sheep, horses, swine, donkey, sewage rats, stray dogs, and cats [
<xref rid="B124-viruses-11-00561" ref-type="bibr">124</xref>
]. Bovine seroepidemiological studies on the prevalence of equine and porcine influenza viruses in cattle sera collected during 1999–2000 in Kentucky demonstrated 17% and 51% seropositive samples against A/equine/Kentucky/94 (H3N8) and A/swine/Texas/98 (H3N2) respectively [
<xref rid="B117-viruses-11-00561" ref-type="bibr">117</xref>
]. A chronological list of studies pertaining to the seroprevalence of IAV in ruminants is shown in
<xref rid="viruses-11-00561-t002" ref-type="table">Table 2</xref>
. These observations have clearly indicated that bovines are susceptible to human, avian, equine, and swine influenza viruses; however, there appears to be some host-specific interference preventing disease development.</p>
</sec>
<sec id="sec8-viruses-11-00561">
<title>8. Bovine Cell Cultures for Influenza Studies in Vitro</title>
<p>Bovine-derived cell cultures especially Madin–Darby bovine kidney (MDBK) cells were widely used for influenza research and these cells played an important role in the phenotypical and genotypical studies of the influenza virus then and now. During 1940–1970, the nucleic acid structure of influenza virus was widely studied, and the virus cultures were mainly derived from infectious allantoic fluid, chorioallantoic membranes, and fibroblasts of the chicken embryos [
<xref rid="B126-viruses-11-00561" ref-type="bibr">126</xref>
,
<xref rid="B127-viruses-11-00561" ref-type="bibr">127</xref>
,
<xref rid="B128-viruses-11-00561" ref-type="bibr">128</xref>
,
<xref rid="B129-viruses-11-00561" ref-type="bibr">129</xref>
,
<xref rid="B130-viruses-11-00561" ref-type="bibr">130</xref>
,
<xref rid="B131-viruses-11-00561" ref-type="bibr">131</xref>
,
<xref rid="B132-viruses-11-00561" ref-type="bibr">132</xref>
,
<xref rid="B133-viruses-11-00561" ref-type="bibr">133</xref>
,
<xref rid="B134-viruses-11-00561" ref-type="bibr">134</xref>
,
<xref rid="B135-viruses-11-00561" ref-type="bibr">135</xref>
,
<xref rid="B136-viruses-11-00561" ref-type="bibr">136</xref>
,
<xref rid="B137-viruses-11-00561" ref-type="bibr">137</xref>
,
<xref rid="B138-viruses-11-00561" ref-type="bibr">138</xref>
,
<xref rid="B139-viruses-11-00561" ref-type="bibr">139</xref>
,
<xref rid="B140-viruses-11-00561" ref-type="bibr">140</xref>
,
<xref rid="B141-viruses-11-00561" ref-type="bibr">141</xref>
,
<xref rid="B142-viruses-11-00561" ref-type="bibr">142</xref>
]. Various studies on the structure and segmented genome of influenza have been demonstrated as early as 1962 [
<xref rid="B143-viruses-11-00561" ref-type="bibr">143</xref>
]. Bovine cell cultures have been widely used for the antigenicity and pathogenicity studies of influenza A and B types. The first report on propagating high yield infectious influenza virus was carried out by Choppin, P. W. in 1969 using MDBK cells, a continuous cell line derived from bovine kidney [
<xref rid="B144-viruses-11-00561" ref-type="bibr">144</xref>
]. Since then, MDBK cells have been used to grow the virus stocks of influenza, especially A/WSN/1933(H1N1) strain (WSN) to study the structure and assembly [
<xref rid="B145-viruses-11-00561" ref-type="bibr">145</xref>
,
<xref rid="B146-viruses-11-00561" ref-type="bibr">146</xref>
,
<xref rid="B147-viruses-11-00561" ref-type="bibr">147</xref>
,
<xref rid="B148-viruses-11-00561" ref-type="bibr">148</xref>
]. WSN-infected MDBK cells have been used for the quantitative measurement of the plus-strand and minus-strand RNAs synthesized during the early and late replication cycle [
<xref rid="B149-viruses-11-00561" ref-type="bibr">149</xref>
]. Purified virions of influenza A, WSN strain grown on MDBK cells were separated by gradient centrifugation and electrophoretically analyzed to determine seven polypeptides [
<xref rid="B150-viruses-11-00561" ref-type="bibr">150</xref>
,
<xref rid="B151-viruses-11-00561" ref-type="bibr">151</xref>
]. The isolation of ribonuclease protein (RNP) with RNA polymerase activity by discontinuous sucrose gradient fractionation of influenza-infected cells using the BHK-21F cells and MDBK cells was also described [
<xref rid="B152-viruses-11-00561" ref-type="bibr">152</xref>
]. MDBK cells have been used in characterization and structural studies of influenza [
<xref rid="B153-viruses-11-00561" ref-type="bibr">153</xref>
,
<xref rid="B154-viruses-11-00561" ref-type="bibr">154</xref>
,
<xref rid="B155-viruses-11-00561" ref-type="bibr">155</xref>
]. The calf and human fetal kidney cells were also used to demonstrate the plaque formation by influenza B viruses [
<xref rid="B156-viruses-11-00561" ref-type="bibr">156</xref>
]. An improved virus propagation system based on the roller cultures has been demonstrated using bovine embryo kidney cells and MDBK cells [
<xref rid="B157-viruses-11-00561" ref-type="bibr">157</xref>
,
<xref rid="B158-viruses-11-00561" ref-type="bibr">158</xref>
]. Simultaneously, pig and canine kidney continuous cell lines were also used to study the persistent infection of influenza and to study the nuclear protein and two nonstructural proteins NS1 and NS2 [
<xref rid="B159-viruses-11-00561" ref-type="bibr">159</xref>
,
<xref rid="B160-viruses-11-00561" ref-type="bibr">160</xref>
,
<xref rid="B161-viruses-11-00561" ref-type="bibr">161</xref>
].</p>
<p>Inoculation of influenza virus on MDBK cells caused the production of M and NS gene segments in full length, without virus production, when infected by a mutant A/WSN virus for several passages, indicative of defective genomes [
<xref rid="B162-viruses-11-00561" ref-type="bibr">162</xref>
]. The concept of Von Magnus particles and defective interfering (DI) influenza viruses was studied using MDBK and HeLa cells and found that DI viruses produced during persistent infection were in good correlation with the ability of the host cell species to produce the infectious virions [
<xref rid="B163-viruses-11-00561" ref-type="bibr">163</xref>
,
<xref rid="B164-viruses-11-00561" ref-type="bibr">164</xref>
,
<xref rid="B165-viruses-11-00561" ref-type="bibr">165</xref>
]. Host-dependent variation in the relative amount of the cleaved and uncleaved HA polypeptide during influenza infection was reported, by comparing the amount of HA by the WSN strain of influenza A0 and the RI/5-strain of influenza A2 in primary monkey kidney cells, MDBK, BHK21-F, and chicken embryos. It was also found that uncleaved HA occurred more in the early growth cycle of influenza virus than the late stage when the cytopathic effects were more pronounced [
<xref rid="B166-viruses-11-00561" ref-type="bibr">166</xref>
]. HA polypeptide cleavage by plasmin produced by the host cell plasminogen activators was also studied in MDBK cells [
<xref rid="B167-viruses-11-00561" ref-type="bibr">167</xref>
]. Plaque formation by influenza type A and B viruses has been extensively studied in calf kidney and specific pathogen-free chicken kidney cells and found the linear relationship of plaque number and virus concentration [
<xref rid="B168-viruses-11-00561" ref-type="bibr">168</xref>
].</p>
<p>MDBK cells have been widely used to study the biological properties of mutant influenza viruses, produced by the host cell-mediated selection pressure. Influenza A, WSN strain caused fuzzy plaques on the chicken embryo fibroblasts but clear plaque morphology when grown in MDBK cells. The parental fuzzy virus and mutant clear viruses demonstrated different binding affinities, with clear viruses producing a high yield, with large amounts of mRNA, exhibited hemagglutination property in the presence of calf serum components and remained cell associated when transferred from 0–37 °C, unlike the fuzzy viruses [
<xref rid="B169-viruses-11-00561" ref-type="bibr">169</xref>
]. Another interesting feature about the influenza viruses derived from different host cell systems is about the amount of the carbohydrate added to the viral HA protein, which in turn determines the host binding property. A study conducted using WSN-F strain of influenza A in chicken embryo fibroblasts and MDBK cells in the presence of tunicamycin showed that HA generated by the MDBK cells, contained 4000 Daltons of carbohydrate in excess than the virus grown in the chicken embryo fibroblasts, which reduced the receptor binding affinity of the virus. This study also demonstrated that MDBK derived influenza viruses have more highly branched and complex asparagine-linked oligosaccharides and galactose-containing bisected oligosaccharides compared to HA subunits derived from viruses grown in chicken embryo fibroblasts [
<xref rid="B170-viruses-11-00561" ref-type="bibr">170</xref>
]. The role of host cell-specific glycosylation of the HA1 subunits, particularly at residues 129 (located at the tip of the HA) and 184 (close to the receptor binding pocket), in receptor binding properties of three influenza variants was studied in MDBK cells. This study demonstrated that glycosylation is site-specific in all the virus variants that were grown in MDBK cells and the reduction in the receptor binding properties of influenza viruses associated with MDBK cells is due to the cumulative effect of the presence of large complex glycans at position 129 and His to Asn substitution at residue 184 [
<xref rid="B171-viruses-11-00561" ref-type="bibr">171</xref>
]. The glycosylation pattern of HA is dependent on the host cell origin which determines the size of the HA, its receptor binding properties, interaction with neutralization antibodies [
<xref rid="B172-viruses-11-00561" ref-type="bibr">172</xref>
]. Further studies are needed to understand whether this peculiar pattern of HA glycosylation has any role in restricting the influenza pathogenesis in bovines in vivo.</p>
<p>The utility of primary bovine kidney cells for developing recombinant temperature-sensitive mutants for human immunization was reported in 1972. The recombinants were developed by co-infecting primary bovine kidney cells with wild-type influenza A/ Hong Kong/1968 (H3N2) and influenza A/Great Lakes/1965 (H2N2) viruses [
<xref rid="B173-viruses-11-00561" ref-type="bibr">173</xref>
]. Several other studies using temperature-sensitive mutants of influenza also used MDBK cells for virus propagation [
<xref rid="B174-viruses-11-00561" ref-type="bibr">174</xref>
,
<xref rid="B175-viruses-11-00561" ref-type="bibr">175</xref>
]. Tracheal/lung organ cultures derived from cow and pig embryos were employed for influenza A2 virus propagation and demonstrated that tracheal organ cultures were more sensitive and supported virus replication [
<xref rid="B176-viruses-11-00561" ref-type="bibr">176</xref>
]. Bovine and porcine tracheae have been used as explant cultures to study the interaction between Mycoplasma and influenza, where trachea of both animal origin was infected with
<italic>Mycoplasma hyorhinis</italic>
and superinfected with influenza and vice versa. The swine trachea showed a synergistic pathologic effect with a complete loss of the ciliated epithelium when infected with
<italic>Mycoplasma hyorhinis</italic>
on day 0 and superinfected with swine influenza on day 2 of the study while the bovine trachea did not show such pathology under similar conditions. On the other hand, swine trachea infected with influenza and superinfected with Mycoplasma clearly demonstrated enhancement of the Mycoplasma growth compared to the controls [
<xref rid="B177-viruses-11-00561" ref-type="bibr">177</xref>
]. Cow embryo tracheal organ cultures and kidney tissue cultures were used to study the reactogenic and immunogenic changes of influenza A/Hong Kong/1/68 (H3N2) virus over serial passages [
<xref rid="B178-viruses-11-00561" ref-type="bibr">178</xref>
]. Virus propagation of WSN influenza strain in bovine, human and chicken embryo cell culture demonstrated that the airborne stability of the WSN virus varied between cell culture versus embryonic eggs and the maximum stability was obtained at low relative humidity [
<xref rid="B179-viruses-11-00561" ref-type="bibr">179</xref>
]. Bovine nasal turbinate cells were also used to study the viral replication kinetics of equine influenza virus (EIV), H3N8 [
<xref rid="B117-viruses-11-00561" ref-type="bibr">117</xref>
,
<xref rid="B180-viruses-11-00561" ref-type="bibr">180</xref>
] and found that EIV infected cells showed cytopathic effect characterized by cell shrinkage rounding and detachment from the cell matrix, compared to the mock cells at 48 h post infection. However, experimental infection of EIV H3N8 virus in calves did not cause any disease or virus shedding despite the estimated equine influenza seroprevalence of 17% in cattle sera collected during 1999–2000 [
<xref rid="B117-viruses-11-00561" ref-type="bibr">117</xref>
]. These observations where in vitro bovine cell/organ cultures can support influenza viruses while in vivo conditions were more resistant, also suggest that bovines possess some host/biological entities interfering with the influenza viral replication and affecting the pathogenesis. A chronological list of references about the utility of bovine cell/organ cultures for influenza studies was given in
<xref rid="viruses-11-00561-t003" ref-type="table">Table 3</xref>
.</p>
</sec>
<sec id="sec9-viruses-11-00561">
<title>9. Host Restriction Factors in Bovines: Sensitivity of Influenza to Cellular/Serum Factors</title>
<p>Despite the growing host range of IAV over the last century, the rare incidence of influenza A in bovine species could be due to the presence of some host-dependent restriction factors in the bovine respiratory tract which could possibly hinder/interfere with influenza virus replication and further adaptation. The fact that influenza A and B viruses could replicate almost always in the in vitro bovine systems [
<xref rid="B145-viruses-11-00561" ref-type="bibr">145</xref>
,
<xref rid="B155-viruses-11-00561" ref-type="bibr">155</xref>
,
<xref rid="B162-viruses-11-00561" ref-type="bibr">162</xref>
,
<xref rid="B163-viruses-11-00561" ref-type="bibr">163</xref>
,
<xref rid="B185-viruses-11-00561" ref-type="bibr">185</xref>
,
<xref rid="B186-viruses-11-00561" ref-type="bibr">186</xref>
,
<xref rid="B187-viruses-11-00561" ref-type="bibr">187</xref>
,
<xref rid="B188-viruses-11-00561" ref-type="bibr">188</xref>
] but very rarely in vivo, suggests the presence of an interfering host factor in vivo. Previous research has shown that biological factors/fluids of ruminants possess anti-influenza activity and hence we speculate that the lack of sensitivity of bovine species to influenza viral pathogenesis could be attributed to some host factors, which could be physiological, cellular, or related immune factors.</p>
<sec id="sec9dot1-viruses-11-00561">
<title>9.1. Bovine Colostrum/Milk</title>
<p>Bovine milk can inactivate/interfere with the hemagglutinating property of influenza virus [
<xref rid="B189-viruses-11-00561" ref-type="bibr">189</xref>
]. Bovine IgG present in the milk binds with viruses aiding phagocytosis. Similarly, the oligosaccharides in the milk can act as a decoy receptor preventing the binding of the influenza virus to the sialylated glycans on the cells [
<xref rid="B190-viruses-11-00561" ref-type="bibr">190</xref>
,
<xref rid="B191-viruses-11-00561" ref-type="bibr">191</xref>
]. Ruminant biological fluids/components such as bovine colostrum, amniotic fluid, mucoprotein from bovine submaxillary glands also could interfere with biological properties of influenza [
<xref rid="B192-viruses-11-00561" ref-type="bibr">192</xref>
,
<xref rid="B193-viruses-11-00561" ref-type="bibr">193</xref>
,
<xref rid="B194-viruses-11-00561" ref-type="bibr">194</xref>
,
<xref rid="B195-viruses-11-00561" ref-type="bibr">195</xref>
,
<xref rid="B196-viruses-11-00561" ref-type="bibr">196</xref>
,
<xref rid="B197-viruses-11-00561" ref-type="bibr">197</xref>
]. A consumable low-molecular-weight fraction (CLMWF) of immunoglobulin-depleted bovine colostrum whey, exhibited antibacterial (Streptococcus) and antiviral (influenza) immune defense in vivo, by aiding the maturation of the antigen presenting cells [
<xref rid="B198-viruses-11-00561" ref-type="bibr">198</xref>
]. Oral administration of the bovine late colostrum has been found to have augmented the local and systemic cellular immunity and the activation of cellular immunity in mice by increasing the NK cell activity, together with high levels of IL-12 and IFN-γ [
<xref rid="B195-viruses-11-00561" ref-type="bibr">195</xref>
].</p>
</sec>
<sec id="sec9dot2-viruses-11-00561">
<title>9.2. Bovine Lactoferrin</title>
<p>Bovine lactoferrin (bLf) is an important protein with broad-spectrum anti-influenza activity [
<xref rid="B199-viruses-11-00561" ref-type="bibr">199</xref>
,
<xref rid="B200-viruses-11-00561" ref-type="bibr">200</xref>
,
<xref rid="B201-viruses-11-00561" ref-type="bibr">201</xref>
,
<xref rid="B202-viruses-11-00561" ref-type="bibr">202</xref>
]. Lactoferrin is a 76 kDa glycoprotein with a single polypeptide chain of 689 amino acid residues, present in the biological fluids and specific granules of polymorphonuclear leukocytes, which has a potential role in immunomodulation, iron absorption, and pathogen inhibition. Bovine lactoferrin demonstrated an inhibiting property against enveloped viruses [
<xref rid="B203-viruses-11-00561" ref-type="bibr">203</xref>
]. Structurally, bLf is a protein with two symmetrical and globular lobes: C- and N-lobe, each with two sub-domains, I and II with an interdomain cleft that binds to an iron atom. C-lobe binds with the HA stem region which includes HA2 and some important amino acid residues of the HA1 region spanning the universal conserved epitope, which explains the broad-spectrum anti-influenza activity of the bLf C-lobe [
<xref rid="B203-viruses-11-00561" ref-type="bibr">203</xref>
]. At the molecular level, bovine lactoferrin binds to the influenza virus HA, thus inhibiting H1N1 and H3N2 influenza viruses [
<xref rid="B199-viruses-11-00561" ref-type="bibr">199</xref>
]. Pietrantoni et al. [
<xref rid="B200-viruses-11-00561" ref-type="bibr">200</xref>
,
<xref rid="B201-viruses-11-00561" ref-type="bibr">201</xref>
] demonstrated that bLf interferes with caspase 3 function and inhibits the nuclear export of the viral ribonucleoproteins to the cytoplasm. This function of bLf was maintained in its desialylated, deglycosylated, apo, and ion-saturated forms. Superti et al. [
<xref rid="B204-viruses-11-00561" ref-type="bibr">204</xref>
] demonstrated that bovine lactoferrin interacts with HA at low pH to attain a stable conformation of the HA of IAV (H1N1), thereby inhibiting the fusion peptide activity [
<xref rid="B204-viruses-11-00561" ref-type="bibr">204</xref>
]. Bovine lactoferrins were also known for its anti-infective, anti-cancer, and anti-inflammatory effects. Oral administration of the bovine lactoferrins reduced the lung consolidation score and leucocyte infiltration in the bronchoalveolar lavage fluid in mice [
<xref rid="B202-viruses-11-00561" ref-type="bibr">202</xref>
,
<xref rid="B205-viruses-11-00561" ref-type="bibr">205</xref>
].</p>
</sec>
<sec id="sec9dot3-viruses-11-00561">
<title>9.3. Bovine Serum Inhibitors: Conglutinin, Collectin</title>
<p>The sensitivity of influenza viruses to periodate-resistant inhibitors in the normal bovine serum has been studied earlier [
<xref rid="B206-viruses-11-00561" ref-type="bibr">206</xref>
]. Bovine sera, especially from fetal calf or normal calf, induced the formation of hemagglutination inhibitors upon treatment with potassium periodate, similar to the phenomenon observed with treated sera from human, rabbits, rats, guinea pig, horses, goat, chicken, and monkey. Only the mouse and hamster sera did not show any increase in the HI titer after periodate treatment [
<xref rid="B207-viruses-11-00561" ref-type="bibr">207</xref>
]. Furthermore, a quantitative estimation of the non-specific HA inhibitors of influenza virus present in the sera of 27 species involving laboratory, domestic, and wild animals and birds demonstrated that sera of sheep, goats, and cattle belonged to a separate group, which is based on the physicochemical properties of antiviral inhibitors such as its sensitivity to heating, potassium periodate, trypsin, 2-Mercaptoethanol, and rivanol. This study also demonstrated that non-specific inhibitors present in bovine sera are heterogenous, i.e., both thermolabile and thermostable types [
<xref rid="B208-viruses-11-00561" ref-type="bibr">208</xref>
]. The non-Ig inhibitors, also known as beta inhibitors in the normal bovine and mouse sera, are mannose-binding lectins [
<xref rid="B209-viruses-11-00561" ref-type="bibr">209</xref>
,
<xref rid="B210-viruses-11-00561" ref-type="bibr">210</xref>
] which bind to the carbohydrate moieties on the HA glycoprotein, blocking the receptor binding sites and thus inhibits the infectivity and hemagglutinating activity of the H1 and H3 influenza A viruses. These serum inhibitors in bovine serum resembled conglutinin, which is a Ca (2+) dependent N-acetylglucosamine and mannose-binding lectin and its hemagglutination inhibition property was abrogated by the polyclonal and monoclonal anticonglutinin antibodies [
<xref rid="B211-viruses-11-00561" ref-type="bibr">211</xref>
,
<xref rid="B212-viruses-11-00561" ref-type="bibr">212</xref>
]. These conglutinins can also act as opsonins for the phagocytosis of influenza A viruses [
<xref rid="B213-viruses-11-00561" ref-type="bibr">213</xref>
]. Wakamiya et al. [
<xref rid="B214-viruses-11-00561" ref-type="bibr">214</xref>
] isolated and characterized conglutinin and demonstrated that the beta-like inhibitor activity of bovine serum is attributed to conglutinin which prevents hemagglutination and neutralizes the virus infectivity. A recombinant bovine conglutinin demonstrated sugar binding, hemagglutination inhibition, conglutination, and neutralization activity against influenza A viruses, such as the native conglutinin [
<xref rid="B215-viruses-11-00561" ref-type="bibr">215</xref>
]. Bovine serum proteins such as conglutinin, collectin-43 (CL-43) and collectin-46 (CL-46) are C-type lectins, of which conglutinin and CL-43 exhibited antiviral properties against influenza A and rotaviruses [
<xref rid="B216-viruses-11-00561" ref-type="bibr">216</xref>
,
<xref rid="B217-viruses-11-00561" ref-type="bibr">217</xref>
]. Conglutinin in the serum of the dairy cows is dependent on the season, breeding, stage of the reproductive cycle and infection [
<xref rid="B218-viruses-11-00561" ref-type="bibr">218</xref>
].</p>
</sec>
<sec id="sec9dot4-viruses-11-00561">
<title>9.4. Bovine Lung Factors</title>
<p>Aprotinin, a natural 58 amino acid protease inhibitor of bovine lung origin, already intended to use in humans for pancreatitis and hemorrhage also possesses the potential to suppress the cleavage of the pandemic H1N1 influenza virus in different host systems such as human tracheobronchial epithelium, human intestinal Caco-2 cells and chicken embryonated eggs [
<xref rid="B219-viruses-11-00561" ref-type="bibr">219</xref>
]. Aprotinin inhibits serine proteases needed for the cleavage of HA and thereby suppressing influenza activity [
<xref rid="B220-viruses-11-00561" ref-type="bibr">220</xref>
]. Similarly, bovine pulmonary Surfactant obtained by the endotracheal lavage of bovine lungs is an efficacious adjuvant for intranasal vaccination and is widely used for acute respiratory distress syndrome in newborns. A synthetic analog for this compound, called SF-10 is available to avoid the risk of Bovine spongiform encephalopathy (BSE). Intranasal application of HA adjuvanted with SF-10 in mice stimulated higher levels of anti-HA-specific secretory IgA (s-IgA) in nasal-wash and serum IgG than induced by HA-poly (I:C), a mucosal vaccine used for protection [
<xref rid="B221-viruses-11-00561" ref-type="bibr">221</xref>
]. SF-10 is an excellent adjuvant choice for commercial vaccine production as it could induce both mucosal and systemic immunity, with balanced Th1-/Th2-type cytokine responses with the production of anti-HA-specific IgG1 and IgG2a without any anti-HA IgE along with IFN-γ- and IL-4-producing lymphocytes in the nasal cavity [
<xref rid="B221-viruses-11-00561" ref-type="bibr">221</xref>
].</p>
</sec>
<sec id="sec9dot5-viruses-11-00561">
<title>9.5. Bovine Antivirals</title>
<p>The role of antiviral factors in the influenza-related innate immune responses have been widely studied as early as the 1960s and found a direct correlation of antiviral protective effect of the interferons on the infected cells [
<xref rid="B222-viruses-11-00561" ref-type="bibr">222</xref>
]. Recombinant bovine interferons (α and γ) were used to study the influenza replication and found that the interferons -α and not -γ, induced the formation of Mx proteins which possess antiviral activity [
<xref rid="B223-viruses-11-00561" ref-type="bibr">223</xref>
]. Mx proteins are dynamin-like large guanosine triphosphatases (GTPases). Different orthologs/paralogs of Mx proteins could be found in either nucleus or cytoplasm, and possess unique antiviral activity depending on the species origin [
<xref rid="B224-viruses-11-00561" ref-type="bibr">224</xref>
]. Anti-influenza activity of the human and bovine chimeric Mx proteins was studied by substituting the GTPase effector domain (GED) of the human Mx protein with bovine and vice versa, and demonstrated that bovine Mx1 proteins exhibited an increased activity against the influenza virus particularly the motifs located in its N-terminal portion is responsible for the interaction with the cellular and viral factors [
<xref rid="B225-viruses-11-00561" ref-type="bibr">225</xref>
].
<xref rid="viruses-11-00561-t004" ref-type="table">Table 4</xref>
. describes the studies conducted in the bovines to detect the host-specific restriction factors against the influenza disease pathogenesis in a chronological manner. Taken together, these studies on the species-specific antiviral factors in bovines indicated that these factors possess anti-influenza activity. Further studies are needed to confirm their causal association and to identify more of such potential host-derived restriction factors.</p>
</sec>
</sec>
<sec id="sec10-viruses-11-00561">
<title>10. Influenza Vaccine Studies in Bovines and Use of Bovine Viral Vectors</title>
<p>In the late 20th century, a vaccination study using killed vaccines of foot and mouth disease (FMD) and influenza was conducted in two-month-old calves and lambs. Interestingly, both these viruses exist in multiple serotypes. Formalin-inactivated allantoic viral cultures of A/PR/8/34 (H1N1) were used as a vaccine. In case of influenza, 100% of animals seroconverted against the homologous serotype influenza (A/PR/8/34) and 18.7% of animals seroconverted against each of the heterologous serotypes A/Leningrad/360/86 (H3N2) and A/Shanghai/11/87 (H3N2)} in calves. Similarly, in lambs, 100% seroconversion was observed against homologous serotype influenza (A/PR/8/34) and 10% and 17.5% seroconverted against the heterologous serotypes A/Leningrad and A/Shanghai, respectively. Only 1/32 and 1/40 responded to both heterologous serotypes in calves and sheep respectively [
<xref rid="B221-viruses-11-00561" ref-type="bibr">221</xref>
].</p>
<p>Bovine adenovirus/adenoviral vector was used to replace the human adenovector to circumvent the pre-existing vector immunity against the human adenovectors in vaccine production. Administration of bovine adenovector (BAd) subtype 3 vectored H5-HA vaccine in human adeno (HAd) serotype 5 primed mice successfully eluded the high levels of pre-existing human adeno neutralizing antibodies and elicited HA-specific humoral and cell-mediated immune (CMI) responses. BAd vector immunization of naïve or adenovirus primed mice ensured full protection from a potentially lethal challenge with A/Hong Kong/483/97 in mice, which ensures its utility in influenza and as an alternative/supplement to other human adenovirus vectored vaccines [
<xref rid="B232-viruses-11-00561" ref-type="bibr">232</xref>
,
<xref rid="B233-viruses-11-00561" ref-type="bibr">233</xref>
]. Influenza viral vectors, particularly of subtypes H5N1 and H1N1 were used for veterinary vaccine applications. Effective protective efficacy was observed upon vaccination of influenza viral vector-based Brucella vaccine in cattle and small ruminants [
<xref rid="B234-viruses-11-00561" ref-type="bibr">234</xref>
,
<xref rid="B235-viruses-11-00561" ref-type="bibr">235</xref>
].</p>
</sec>
<sec id="sec11-viruses-11-00561">
<title>11. Summary</title>
<p>Here, we conducted a comprehensive review of the literature available on the past influenza cases/studies occurring globally in ruminant (bovine, caprine, ovine) population, and have summarized the overall influenza A prevalence in bovines. In this review, we have discussed the host range of the four types of influenza, emphasizing the susceptibility/utility of bovine in vivo and in vitro models to influenza A studies over recent years. Even though natural cases of influenza occurred in bovines causing influenza-like respiratory disease with bronchopneumonia, epizootic cough, nasal discharge, lacrimation, or other extrapulmonary signs such as milk drop, only a few cases culminated in successful virus isolation. Cattle-origin IAV strains were isolated during the early 1970s, around the time when Hongkong/1968 human IAV strains (H3N2) were prevalent. Although the relatedness of HA glycoprotein of these cattle IAV strains to human H2 and H3 prototypes was reported, sufficient data/characterization studies were lacking to support the extent of genetic relatedness. Pigs, which were domesticated by humans 1500 years after cattle, are naturally susceptible to all four influenza types and are excellent mixing vessels of influenza. Hence, the refractory nature of bovines against influenza A could be due to species-specific host-associated interference as discussed before. Compared to IAV and IBV (eight segmented genomes), bovines are naturally susceptible to IDV, and lately to ICV (seven segmented genomes) as indicated by the seroprevalence studies and isolation of complete viral genomes, thus contributing significantly to the bovine respiratory disease along with other bacterial/viral pathogens. The transboundary occurrence of influenza D in bovines, compounded with its extraordinary thermal and pH stability [
<xref rid="B236-viruses-11-00561" ref-type="bibr">236</xref>
] compared to other influenza types, demands further studies to study the pathobiological aspects of this virus and its predisposition in bovine species. The fact that bovines harbor some natural predisposing factors, amenable for the tissue tropism and pathogenesis of ICV and IDV, while detrimental to IAV and IBV, would make them a suitable model to delineate influenza type-specific host–pathogen interactions, and further studies are needed to address this differential disease pathogenesis at the cellular and molecular level.</p>
</sec>
</body>
<back>
<ack>
<title>Acknowledgments</title>
<p>This study was supported by NIH R21AI107379 and R01AI141889, SDSU-AES 610 3AH-673, USDA/NIFA 2016–67016-24949, National Science Foundation/EPSCoR (
<uri xlink:href="http://www.nsf.gov/od/iia/programs/epscor/index.jsp">http://www.nsf.gov/od/iia/programs/epscor/index.jsp</uri>
) award IIA-1335423, and the SD-CBRC supported by the State of South Dakota’s Governor’s Office of Economic Development.</p>
</ack>
<notes>
<title>Author Contributions</title>
<p>Concept and design: F.L. and D.W.; Literature search, and writing: C.C.S.; Illustrations: C.C.S., M.T., and D.W.; Supervision and editing: R.S.K., and F.L. Final approval of the version submitted: all the authors.</p>
</notes>
<notes notes-type="COI-statement">
<title>Conflicts of Interest</title>
<p>The authors declare no conflict of interest.</p>
</notes>
<ref-list>
<title>References</title>
<ref id="B1-viruses-11-00561">
<label>1.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Potter</surname>
<given-names>C.W.</given-names>
</name>
</person-group>
<article-title>A history of influenza</article-title>
<source>J. Appl. Microbiol.</source>
<year>2001</year>
<volume>91</volume>
<fpage>572</fpage>
<lpage>579</lpage>
<pub-id pub-id-type="doi">10.1046/j.1365-2672.2001.01492.x</pub-id>
<pub-id pub-id-type="pmid">11576290</pub-id>
</element-citation>
</ref>
<ref id="B2-viruses-11-00561">
<label>2.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Das</surname>
<given-names>K.</given-names>
</name>
<name>
<surname>Aramini</surname>
<given-names>J.M.</given-names>
</name>
<name>
<surname>Ma</surname>
<given-names>L.-C.</given-names>
</name>
<name>
<surname>Krug</surname>
<given-names>R.M.</given-names>
</name>
<name>
<surname>Arnold</surname>
<given-names>E.</given-names>
</name>
</person-group>
<article-title>Structures of influenza A proteins and insights into antiviral drug targets</article-title>
<source>Nat. Struct. Mol. Boil.</source>
<year>2010</year>
<volume>17</volume>
<fpage>530</fpage>
<lpage>538</lpage>
<pub-id pub-id-type="doi">10.1038/nsmb.1779</pub-id>
<pub-id pub-id-type="pmid">20383144</pub-id>
</element-citation>
</ref>
<ref id="B3-viruses-11-00561">
<label>3.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Richardson</surname>
<given-names>J.C.</given-names>
</name>
<name>
<surname>Akkina</surname>
<given-names>R.K.</given-names>
</name>
</person-group>
<article-title>NS
<sub>2</sub>
protein of influenza virus is found in purified virus and phosphorylated in infected cells</article-title>
<source>Arch. Virol.</source>
<year>1991</year>
<volume>116</volume>
<fpage>69</fpage>
<lpage>80</lpage>
<pub-id pub-id-type="doi">10.1007/BF01319232</pub-id>
<pub-id pub-id-type="pmid">1825776</pub-id>
</element-citation>
</ref>
<ref id="B4-viruses-11-00561">
<label>4.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Hutchinson</surname>
<given-names>E.C.</given-names>
</name>
<name>
<surname>Charles</surname>
<given-names>P.D.</given-names>
</name>
<name>
<surname>Hester</surname>
<given-names>S.S.</given-names>
</name>
<name>
<surname>Thomas</surname>
<given-names>B.</given-names>
</name>
<name>
<surname>Trudgian</surname>
<given-names>D.</given-names>
</name>
<name>
<surname>Martinez-Alonso</surname>
<given-names>M.</given-names>
</name>
<name>
<surname>Fodor</surname>
<given-names>E.</given-names>
</name>
</person-group>
<article-title>Conserved and host-specific features of influenza virion architecture</article-title>
<source>Nat. Commun.</source>
<year>2014</year>
<volume>5</volume>
<fpage>4816</fpage>
<pub-id pub-id-type="doi">10.1038/ncomms5816</pub-id>
<pub-id pub-id-type="pmid">25226414</pub-id>
</element-citation>
</ref>
<ref id="B5-viruses-11-00561">
<label>5.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Paragas</surname>
<given-names>J.</given-names>
</name>
<name>
<surname>Talon</surname>
<given-names>J.</given-names>
</name>
<name>
<surname>O’Neill</surname>
<given-names>R.E.</given-names>
</name>
<name>
<surname>Anderson</surname>
<given-names>D.K.</given-names>
</name>
<name>
<surname>García-Sastre</surname>
<given-names>A.</given-names>
</name>
<name>
<surname>Palese</surname>
<given-names>P.</given-names>
</name>
</person-group>
<article-title>Influenza B and C virus NEP (NS2) proteins possess nuclear export activities</article-title>
<source>J. Virol.</source>
<year>2001</year>
<volume>75</volume>
<fpage>7375</fpage>
<lpage>7383</lpage>
<pub-id pub-id-type="doi">10.1128/JVI.75.16.7375-7383.2001</pub-id>
<pub-id pub-id-type="pmid">11462009</pub-id>
</element-citation>
</ref>
<ref id="B6-viruses-11-00561">
<label>6.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Tong</surname>
<given-names>S.</given-names>
</name>
<name>
<surname>Li</surname>
<given-names>Y.</given-names>
</name>
<name>
<surname>Rivailler</surname>
<given-names>P.</given-names>
</name>
<name>
<surname>Conrardy</surname>
<given-names>C.</given-names>
</name>
<name>
<surname>Castillo</surname>
<given-names>D.A.</given-names>
</name>
<name>
<surname>Chen</surname>
<given-names>L.M.</given-names>
</name>
<name>
<surname>Recuenco</surname>
<given-names>S.</given-names>
</name>
<name>
<surname>Ellison</surname>
<given-names>J.A.</given-names>
</name>
<name>
<surname>Davis</surname>
<given-names>C.T.</given-names>
</name>
<name>
<surname>York</surname>
<given-names>I.A.</given-names>
</name>
<etal></etal>
</person-group>
<article-title>A distinct lineage of influenza A virus from bats</article-title>
<source>Proc. Natl. Acad. Sci. USA</source>
<year>2012</year>
<volume>109</volume>
<fpage>4269</fpage>
<lpage>4274</lpage>
<pub-id pub-id-type="doi">10.1073/pnas.1116200109</pub-id>
<pub-id pub-id-type="pmid">22371588</pub-id>
</element-citation>
</ref>
<ref id="B7-viruses-11-00561">
<label>7.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Campos</surname>
<given-names>A.C.A.</given-names>
</name>
<name>
<surname>Goes</surname>
<given-names>L.G.B.</given-names>
</name>
<name>
<surname>Moreira-Soto</surname>
<given-names>A.</given-names>
</name>
<name>
<surname>de Carvalho</surname>
<given-names>C.</given-names>
</name>
<name>
<surname>Ambar</surname>
<given-names>G.</given-names>
</name>
<name>
<surname>Sander</surname>
<given-names>A.L.</given-names>
</name>
<name>
<surname>Fischer</surname>
<given-names>C.</given-names>
</name>
<name>
<surname>Ruckert da Rosa</surname>
<given-names>A.</given-names>
</name>
<name>
<surname>Cardoso de Oliveira</surname>
<given-names>D.</given-names>
</name>
<name>
<surname>Kataoka</surname>
<given-names>A.P.G.</given-names>
</name>
<etal></etal>
</person-group>
<article-title>Bat influenza A(HL18NL11) virus in Fruit Bats, Brazil</article-title>
<source>Emerg. Infect. Dis.</source>
<year>2019</year>
<volume>25</volume>
<fpage>333</fpage>
<lpage>337</lpage>
<pub-id pub-id-type="doi">10.3201/eid2502.181246</pub-id>
<pub-id pub-id-type="pmid">30666923</pub-id>
</element-citation>
</ref>
<ref id="B8-viruses-11-00561">
<label>8.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Palese</surname>
<given-names>P.</given-names>
</name>
</person-group>
<article-title>Influenza: Old and new threats</article-title>
<source>Nat. Med.</source>
<year>2004</year>
<volume>10</volume>
<fpage>S82</fpage>
<lpage>S87</lpage>
<pub-id pub-id-type="doi">10.1038/nm1141</pub-id>
<pub-id pub-id-type="pmid">15577936</pub-id>
</element-citation>
</ref>
<ref id="B9-viruses-11-00561">
<label>9.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Berhane</surname>
<given-names>Y.</given-names>
</name>
<name>
<surname>Ojkic</surname>
<given-names>D.</given-names>
</name>
<name>
<surname>Neufeld</surname>
<given-names>J.</given-names>
</name>
<name>
<surname>Leith</surname>
<given-names>M.</given-names>
</name>
<name>
<surname>Hisanaga</surname>
<given-names>T.</given-names>
</name>
<name>
<surname>Kehler</surname>
<given-names>H.</given-names>
</name>
<name>
<surname>Ferencz</surname>
<given-names>A.</given-names>
</name>
<name>
<surname>Wojcinski</surname>
<given-names>H.</given-names>
</name>
<name>
<surname>Cottam-Birt</surname>
<given-names>C.</given-names>
</name>
<name>
<surname>Suderman</surname>
<given-names>M.</given-names>
</name>
<etal></etal>
</person-group>
<article-title>Molecular characterization of pandemic H1N1 influenza viruses isolated from turkeys and pathogenicity of a human pH1N1 isolate in turkeys</article-title>
<source>Avian Dis.</source>
<year>2010</year>
<volume>54</volume>
<fpage>1275</fpage>
<lpage>1285</lpage>
<pub-id pub-id-type="doi">10.1637/9422-061410-Reg.1</pub-id>
<pub-id pub-id-type="pmid">21313850</pub-id>
</element-citation>
</ref>
<ref id="B10-viruses-11-00561">
<label>10.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Campagnolo</surname>
<given-names>E.R.</given-names>
</name>
<name>
<surname>Rankin</surname>
<given-names>J.T.</given-names>
</name>
<name>
<surname>Daverio</surname>
<given-names>S.A.</given-names>
</name>
<name>
<surname>Hunt</surname>
<given-names>E.A.</given-names>
</name>
<name>
<surname>Lute</surname>
<given-names>J.R.</given-names>
</name>
<name>
<surname>Tewari</surname>
<given-names>D.</given-names>
</name>
<name>
<surname>Acland</surname>
<given-names>H.M.</given-names>
</name>
<name>
<surname>Ostrowski</surname>
<given-names>S.R.</given-names>
</name>
<name>
<surname>Moll</surname>
<given-names>M.E.</given-names>
</name>
<name>
<surname>Urdaneta</surname>
<given-names>V.V.</given-names>
</name>
<etal></etal>
</person-group>
<article-title>Fatal pandemic (H1N1) 2009 influenza A virus infection in a Pennsylvania domestic cat</article-title>
<source>Zoonoses Public Health</source>
<year>2011</year>
<volume>58</volume>
<fpage>500</fpage>
<lpage>507</lpage>
<pub-id pub-id-type="doi">10.1111/j.1863-2378.2011.01390.x</pub-id>
<pub-id pub-id-type="pmid">21824345</pub-id>
</element-citation>
</ref>
<ref id="B11-viruses-11-00561">
<label>11.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Dundon</surname>
<given-names>W.G.</given-names>
</name>
<name>
<surname>De Benedictis</surname>
<given-names>P.</given-names>
</name>
<name>
<surname>Viale</surname>
<given-names>E.</given-names>
</name>
<name>
<surname>Capua</surname>
<given-names>I.</given-names>
</name>
</person-group>
<article-title>Serologic evidence of pandemic (H1N1) 2009 infection in dogs, Italy</article-title>
<source>Emerg. Infect. Dis.</source>
<year>2010</year>
<volume>16</volume>
<fpage>2019</fpage>
<lpage>2021</lpage>
<pub-id pub-id-type="doi">10.3201/eid1612.100514</pub-id>
<pub-id pub-id-type="pmid">21122255</pub-id>
</element-citation>
</ref>
<ref id="B12-viruses-11-00561">
<label>12.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Pasma</surname>
<given-names>T.</given-names>
</name>
<name>
<surname>Joseph</surname>
<given-names>T.</given-names>
</name>
</person-group>
<article-title>Pandemic (H1N1) 2009 infection in swine herds, Manitoba, Canada</article-title>
<source>Emerg. Infect. Dis.</source>
<year>2010</year>
<volume>16</volume>
<fpage>706</fpage>
<lpage>708</lpage>
<pub-id pub-id-type="doi">10.3201/eid1604.091636</pub-id>
<pub-id pub-id-type="pmid">20350394</pub-id>
</element-citation>
</ref>
<ref id="B13-viruses-11-00561">
<label>13.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Sponseller</surname>
<given-names>B.A.</given-names>
</name>
<name>
<surname>Strait</surname>
<given-names>E.</given-names>
</name>
<name>
<surname>Jergens</surname>
<given-names>A.</given-names>
</name>
<name>
<surname>Trujillo</surname>
<given-names>J.</given-names>
</name>
<name>
<surname>Harmon</surname>
<given-names>K.</given-names>
</name>
<name>
<surname>Koster</surname>
<given-names>L.</given-names>
</name>
<name>
<surname>Jenkins-Moore</surname>
<given-names>M.</given-names>
</name>
<name>
<surname>Killian</surname>
<given-names>M.</given-names>
</name>
<name>
<surname>Swenson</surname>
<given-names>S.</given-names>
</name>
<name>
<surname>Bender</surname>
<given-names>H.</given-names>
</name>
<etal></etal>
</person-group>
<article-title>Influenza A pandemic (H1N1) 2009 virus infection in domestic cat</article-title>
<source>Emerg. Infect. Dis.</source>
<year>2010</year>
<volume>16</volume>
<fpage>534</fpage>
<lpage>537</lpage>
<pub-id pub-id-type="doi">10.3201/eid1603.091737</pub-id>
<pub-id pub-id-type="pmid">20202440</pub-id>
</element-citation>
</ref>
<ref id="B14-viruses-11-00561">
<label>14.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Welsh</surname>
<given-names>M.D.</given-names>
</name>
<name>
<surname>Baird</surname>
<given-names>P.M.</given-names>
</name>
<name>
<surname>Guelbenzu-Gonzalo</surname>
<given-names>M.P.</given-names>
</name>
<name>
<surname>Hanna</surname>
<given-names>A.</given-names>
</name>
<name>
<surname>Reid</surname>
<given-names>S.M.</given-names>
</name>
<name>
<surname>Essen</surname>
<given-names>S.</given-names>
</name>
<name>
<surname>Russell</surname>
<given-names>C.</given-names>
</name>
<name>
<surname>Thomas</surname>
<given-names>S.</given-names>
</name>
<name>
<surname>Barrass</surname>
<given-names>L.</given-names>
</name>
<name>
<surname>McNeilly</surname>
<given-names>F.</given-names>
</name>
<etal></etal>
</person-group>
<article-title>Initial incursion of pandemic (H1N1) 2009 influenza A virus into European pigs</article-title>
<source>Vet. Rec.</source>
<year>2010</year>
<volume>166</volume>
<fpage>642</fpage>
<lpage>645</lpage>
<pub-id pub-id-type="doi">10.1136/vr.4851</pub-id>
<pub-id pub-id-type="pmid">20495164</pub-id>
</element-citation>
</ref>
<ref id="B15-viruses-11-00561">
<label>15.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Callan</surname>
<given-names>R.J.</given-names>
</name>
<name>
<surname>Early</surname>
<given-names>G.</given-names>
</name>
<name>
<surname>Kida</surname>
<given-names>H.</given-names>
</name>
<name>
<surname>Hinshaw</surname>
<given-names>V.S.</given-names>
</name>
</person-group>
<article-title>The appearance of H3 influenza viruses in seals</article-title>
<source>J. Gen. Virol.</source>
<year>1995</year>
<volume>76</volume>
<fpage>199</fpage>
<lpage>203</lpage>
<pub-id pub-id-type="pmid">7844533</pub-id>
</element-citation>
</ref>
<ref id="B16-viruses-11-00561">
<label>16.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Hinshaw</surname>
<given-names>V.S.</given-names>
</name>
<name>
<surname>Bean</surname>
<given-names>W.J.</given-names>
</name>
<name>
<surname>Geraci</surname>
<given-names>J.</given-names>
</name>
<name>
<surname>Fiorelli</surname>
<given-names>P.</given-names>
</name>
<name>
<surname>Early</surname>
<given-names>G.</given-names>
</name>
<name>
<surname>Webster</surname>
<given-names>R.G.</given-names>
</name>
</person-group>
<article-title>Characterization of two influenza A viruses from a pilot whale</article-title>
<source>J. Virol.</source>
<year>1986</year>
<volume>58</volume>
<fpage>655</fpage>
<lpage>656</lpage>
<pub-id pub-id-type="pmid">3701925</pub-id>
</element-citation>
</ref>
<ref id="B17-viruses-11-00561">
<label>17.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Lang</surname>
<given-names>G.</given-names>
</name>
<name>
<surname>Gagnon</surname>
<given-names>A.</given-names>
</name>
<name>
<surname>Geraci</surname>
<given-names>J.R.</given-names>
</name>
</person-group>
<article-title>Isolation of an influenza A virus from seals</article-title>
<source>Arch. Virol.</source>
<year>1981</year>
<volume>68</volume>
<fpage>189</fpage>
<lpage>195</lpage>
<pub-id pub-id-type="doi">10.1007/BF01314571</pub-id>
<pub-id pub-id-type="pmid">6168245</pub-id>
</element-citation>
</ref>
<ref id="B18-viruses-11-00561">
<label>18.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Vladimirtseva</surname>
<given-names>E.A.</given-names>
</name>
<name>
<surname>Sadykhova</surname>
<given-names>F.</given-names>
</name>
<name>
<surname>Iamnikova</surname>
<given-names>S.S.</given-names>
</name>
<name>
<surname>L’Vov</surname>
<given-names>D.K.</given-names>
</name>
<name>
<surname>Zhdanov</surname>
<given-names>V.M.</given-names>
</name>
</person-group>
<article-title>Physicochemical properties of the RNA and proteins of an influenza virus H1N3 isolated from an ill child and antigenically analogous to A/whale/TO/19/76</article-title>
<source>Vopr. Virusol.</source>
<year>1985</year>
<volume>30</volume>
<fpage>163</fpage>
<lpage>166</lpage>
<pub-id pub-id-type="pmid">4002690</pub-id>
</element-citation>
</ref>
<ref id="B19-viruses-11-00561">
<label>19.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Taubenberger</surname>
<given-names>J.K.</given-names>
</name>
<name>
<surname>Kash</surname>
<given-names>J.C.</given-names>
</name>
</person-group>
<article-title>Influenza virus evolution, host adaptation, and pandemic formation</article-title>
<source>Cell Host Microbe</source>
<year>2010</year>
<volume>7</volume>
<fpage>440</fpage>
<lpage>451</lpage>
<pub-id pub-id-type="doi">10.1016/j.chom.2010.05.009</pub-id>
<pub-id pub-id-type="pmid">20542248</pub-id>
</element-citation>
</ref>
<ref id="B20-viruses-11-00561">
<label>20.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Alexander</surname>
<given-names>P.E.</given-names>
</name>
<name>
<surname>De</surname>
<given-names>P.</given-names>
</name>
<name>
<surname>Rave</surname>
<given-names>S.</given-names>
</name>
</person-group>
<article-title>Is H9N2 avian influenza virus a pandemic potential?</article-title>
<source>Can. J. Infect. Dis. Med. Microbiol.</source>
<year>2009</year>
<volume>20</volume>
<fpage>e35</fpage>
<lpage>e36</lpage>
<pub-id pub-id-type="doi">10.1155/2009/578179</pub-id>
</element-citation>
</ref>
<ref id="B21-viruses-11-00561">
<label>21.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Taubenberger</surname>
<given-names>J.K.</given-names>
</name>
<name>
<surname>Morens</surname>
<given-names>D.M.</given-names>
</name>
</person-group>
<article-title>Pandemic influenza—Including a risk assessment of H5N1</article-title>
<source>Rev. Sci. Tech.</source>
<year>2009</year>
<volume>28</volume>
<fpage>187</fpage>
<lpage>202</lpage>
<pub-id pub-id-type="doi">10.20506/rst.28.1.1879</pub-id>
<pub-id pub-id-type="pmid">19618626</pub-id>
</element-citation>
</ref>
<ref id="B22-viruses-11-00561">
<label>22.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Wan</surname>
<given-names>H.</given-names>
</name>
<name>
<surname>Sorrell</surname>
<given-names>E.M.</given-names>
</name>
<name>
<surname>Song</surname>
<given-names>H.</given-names>
</name>
<name>
<surname>Hossain</surname>
<given-names>M.J.</given-names>
</name>
<name>
<surname>Ramirez-Nieto</surname>
<given-names>G.</given-names>
</name>
<name>
<surname>Monne</surname>
<given-names>I.</given-names>
</name>
<name>
<surname>Stevens</surname>
<given-names>J.</given-names>
</name>
<name>
<surname>Cattoli</surname>
<given-names>G.</given-names>
</name>
<name>
<surname>Capua</surname>
<given-names>I.</given-names>
</name>
<name>
<surname>Chen</surname>
<given-names>L.M.</given-names>
</name>
<etal></etal>
</person-group>
<article-title>Replication and transmission of H9N2 influenza viruses in ferrets: Evaluation of pandemic potential</article-title>
<source>PLoS ONE</source>
<year>2008</year>
<volume>3</volume>
<elocation-id>e2923</elocation-id>
<pub-id pub-id-type="doi">10.1371/journal.pone.0002923</pub-id>
<pub-id pub-id-type="pmid">18698430</pub-id>
</element-citation>
</ref>
<ref id="B23-viruses-11-00561">
<label>23.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Cauldwell</surname>
<given-names>A.V.</given-names>
</name>
<name>
<surname>Long</surname>
<given-names>J.S.</given-names>
</name>
<name>
<surname>Moncorge</surname>
<given-names>O.</given-names>
</name>
<name>
<surname>Barclay</surname>
<given-names>W.S.</given-names>
</name>
</person-group>
<article-title>Viral determinants of influenza A virus host range</article-title>
<source>J. Gen. Virol.</source>
<year>2014</year>
<volume>95</volume>
<fpage>1193</fpage>
<lpage>1210</lpage>
<pub-id pub-id-type="doi">10.1099/vir.0.062836-0</pub-id>
<pub-id pub-id-type="pmid">24584475</pub-id>
</element-citation>
</ref>
<ref id="B24-viruses-11-00561">
<label>24.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Manz</surname>
<given-names>B.</given-names>
</name>
<name>
<surname>Schwemmle</surname>
<given-names>M.</given-names>
</name>
<name>
<surname>Brunotte</surname>
<given-names>L.</given-names>
</name>
</person-group>
<article-title>Adaptation of avian influenza A virus polymerase in mammals to overcome the host species barrier</article-title>
<source>J. Virol.</source>
<year>2013</year>
<volume>87</volume>
<fpage>7200</fpage>
<lpage>7209</lpage>
<pub-id pub-id-type="doi">10.1128/JVI.00980-13</pub-id>
<pub-id pub-id-type="pmid">23616660</pub-id>
</element-citation>
</ref>
<ref id="B25-viruses-11-00561">
<label>25.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Busuioc</surname>
<given-names>C.</given-names>
</name>
<name>
<surname>Popovici</surname>
<given-names>M.</given-names>
</name>
<name>
<surname>Ionescu</surname>
<given-names>V.</given-names>
</name>
<name>
<surname>Stoicescu</surname>
<given-names>A.</given-names>
</name>
<name>
<surname>Scheau</surname>
<given-names>A.</given-names>
</name>
<name>
<surname>Cazacu</surname>
<given-names>E.</given-names>
</name>
</person-group>
<article-title>Incidence and level of influenza and adenovirus antibodies in various species of domestic animals</article-title>
<source>Stud. Cercet. Inframicrobiol.</source>
<year>1969</year>
<volume>20</volume>
<fpage>191</fpage>
<lpage>195</lpage>
<pub-id pub-id-type="pmid">4310140</pub-id>
</element-citation>
</ref>
<ref id="B26-viruses-11-00561">
<label>26.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Cilli</surname>
<given-names>V.</given-names>
</name>
<name>
<surname>Davoli</surname>
<given-names>R.</given-names>
</name>
</person-group>
<article-title>Reaction of bovines to experimental infection with human influenza virus</article-title>
<source>Nuovi Ann. Ig. Microbiol.</source>
<year>1954</year>
<volume>5</volume>
<fpage>106</fpage>
<lpage>109</lpage>
<pub-id pub-id-type="pmid">13194210</pub-id>
</element-citation>
</ref>
<ref id="B27-viruses-11-00561">
<label>27.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Smetanin</surname>
<given-names>M.A.</given-names>
</name>
<name>
<surname>Molibog</surname>
<given-names>E.V.</given-names>
</name>
<name>
<surname>Borovik</surname>
<given-names>R.V.</given-names>
</name>
<name>
<surname>Zakstel’skaia</surname>
<given-names>L.</given-names>
</name>
<name>
<surname>Isachenko</surname>
<given-names>V.A.</given-names>
</name>
</person-group>
<article-title>Experimental inoculation of calves with influenza virus A/csf/Udmurtiia/116/73</article-title>
<source>Vopr. Virusol.</source>
<year>1977</year>
<volume>3</volume>
<fpage>285</fpage>
<lpage>287</lpage>
</element-citation>
</ref>
<ref id="B28-viruses-11-00561">
<label>28.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Yoon</surname>
<given-names>S.W.</given-names>
</name>
<name>
<surname>Webby</surname>
<given-names>R.J.</given-names>
</name>
<name>
<surname>Webster</surname>
<given-names>R.G.</given-names>
</name>
</person-group>
<article-title>Evolution and ecology of influenza A viruses</article-title>
<source>Curr. Top. Microbiol. Immunol.</source>
<year>2014</year>
<volume>385</volume>
<fpage>359</fpage>
<lpage>375</lpage>
<pub-id pub-id-type="pmid">24990620</pub-id>
</element-citation>
</ref>
<ref id="B29-viruses-11-00561">
<label>29.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Shope</surname>
<given-names>R.E.</given-names>
</name>
</person-group>
<article-title>Swine influenza: Iii. filtration experiments and etiology</article-title>
<source>J. Exp. Med.</source>
<year>1931</year>
<volume>54</volume>
<fpage>373</fpage>
<lpage>385</lpage>
<pub-id pub-id-type="doi">10.1084/jem.54.3.373</pub-id>
<pub-id pub-id-type="pmid">19869924</pub-id>
</element-citation>
</ref>
<ref id="B30-viruses-11-00561">
<label>30.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Webby</surname>
<given-names>R.J.</given-names>
</name>
<name>
<surname>Swenson</surname>
<given-names>S.L.</given-names>
</name>
<name>
<surname>Krauss</surname>
<given-names>S.L.</given-names>
</name>
<name>
<surname>Gerrish</surname>
<given-names>P.J.</given-names>
</name>
<name>
<surname>Goyal</surname>
<given-names>S.M.</given-names>
</name>
<name>
<surname>Webster</surname>
<given-names>R.G.</given-names>
</name>
</person-group>
<article-title>Evolution of swine H3N2 influenza viruses in the United States</article-title>
<source>J. Virol.</source>
<year>2000</year>
<volume>74</volume>
<fpage>8243</fpage>
<lpage>8251</lpage>
<pub-id pub-id-type="doi">10.1128/JVI.74.18.8243-8251.2000</pub-id>
<pub-id pub-id-type="pmid">10954521</pub-id>
</element-citation>
</ref>
<ref id="B31-viruses-11-00561">
<label>31.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Zhou</surname>
<given-names>N.N.</given-names>
</name>
<name>
<surname>Senne</surname>
<given-names>D.A.</given-names>
</name>
<name>
<surname>Landgraf</surname>
<given-names>J.S.</given-names>
</name>
<name>
<surname>Swenson</surname>
<given-names>S.L.</given-names>
</name>
<name>
<surname>Erickson</surname>
<given-names>G.</given-names>
</name>
<name>
<surname>Rossow</surname>
<given-names>K.</given-names>
</name>
<name>
<surname>Liu</surname>
<given-names>L.</given-names>
</name>
<name>
<surname>Yoon</surname>
<given-names>K.</given-names>
</name>
<name>
<surname>Krauss</surname>
<given-names>S.</given-names>
</name>
<name>
<surname>Webster</surname>
<given-names>R.G.</given-names>
</name>
</person-group>
<article-title>Genetic reassortment of avian, swine, and human influenza A viruses in American pigs</article-title>
<source>J. Virol.</source>
<year>1999</year>
<volume>73</volume>
<fpage>8851</fpage>
<lpage>8856</lpage>
<pub-id pub-id-type="pmid">10482643</pub-id>
</element-citation>
</ref>
<ref id="B32-viruses-11-00561">
<label>32.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Vincent</surname>
<given-names>A.</given-names>
</name>
<name>
<surname>Awada</surname>
<given-names>L.</given-names>
</name>
<name>
<surname>Brown</surname>
<given-names>I.</given-names>
</name>
<name>
<surname>Chen</surname>
<given-names>H.</given-names>
</name>
<name>
<surname>Claes</surname>
<given-names>F.</given-names>
</name>
<name>
<surname>Dauphin</surname>
<given-names>G.</given-names>
</name>
<name>
<surname>Donis</surname>
<given-names>R.</given-names>
</name>
<name>
<surname>Culhane</surname>
<given-names>M.</given-names>
</name>
<name>
<surname>Hamilton</surname>
<given-names>K.</given-names>
</name>
<name>
<surname>Lewis</surname>
<given-names>N.</given-names>
</name>
<etal></etal>
</person-group>
<article-title>Review of influenza A virus in swine worldwide: A call for increased surveillance and research</article-title>
<source>Zoonoses Public Health</source>
<year>2014</year>
<volume>61</volume>
<fpage>4</fpage>
<lpage>17</lpage>
<pub-id pub-id-type="doi">10.1111/zph.12049</pub-id>
<pub-id pub-id-type="pmid">23556412</pub-id>
</element-citation>
</ref>
<ref id="B33-viruses-11-00561">
<label>33.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Webster</surname>
<given-names>R.G.</given-names>
</name>
<name>
<surname>Thomas</surname>
<given-names>T.L.</given-names>
</name>
</person-group>
<article-title>Efficacy of equine influenza vaccines for protection against A/Equine/Jilin/89 (H3N8)—A new equine influenza virus</article-title>
<source>Vaccine</source>
<year>1993</year>
<volume>11</volume>
<fpage>987</fpage>
<lpage>993</lpage>
<pub-id pub-id-type="doi">10.1016/0264-410X(93)90122-E</pub-id>
<pub-id pub-id-type="pmid">8212831</pub-id>
</element-citation>
</ref>
<ref id="B34-viruses-11-00561">
<label>34.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Hamed</surname>
<given-names>M.I.</given-names>
</name>
<name>
<surname>Amen</surname>
<given-names>O.A.K.</given-names>
</name>
<name>
<surname>Rateb</surname>
<given-names>H.Z.</given-names>
</name>
</person-group>
<article-title>Detection of avian influenza virus H5N1 in horses at Assiut Governorate, Egypt</article-title>
<source>J. Adv. Vet. Res.</source>
<year>2014</year>
<volume>4</volume>
<fpage>161</fpage>
<lpage>165</lpage>
</element-citation>
</ref>
<ref id="B35-viruses-11-00561">
<label>35.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Feng</surname>
<given-names>K.H.</given-names>
</name>
<name>
<surname>Gonzalez</surname>
<given-names>G.</given-names>
</name>
<name>
<surname>Deng</surname>
<given-names>L.</given-names>
</name>
<name>
<surname>Yu</surname>
<given-names>H.</given-names>
</name>
<name>
<surname>Tse</surname>
<given-names>V.L.</given-names>
</name>
<name>
<surname>Huang</surname>
<given-names>L.</given-names>
</name>
<name>
<surname>Huang</surname>
<given-names>K.</given-names>
</name>
<name>
<surname>Wasik</surname>
<given-names>B.R.</given-names>
</name>
<name>
<surname>Zhou</surname>
<given-names>B.</given-names>
</name>
<name>
<surname>Wentworth</surname>
<given-names>D.E.</given-names>
</name>
<etal></etal>
</person-group>
<article-title>Equine and canine influenza H3N8 viruses show minimal biological differences despite phylogenetic divergence</article-title>
<source>J. Virol.</source>
<year>2015</year>
<volume>89</volume>
<fpage>6860</fpage>
<pub-id pub-id-type="doi">10.1128/JVI.00521-15</pub-id>
<pub-id pub-id-type="pmid">25903329</pub-id>
</element-citation>
</ref>
<ref id="B36-viruses-11-00561">
<label>36.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Zhu</surname>
<given-names>H.</given-names>
</name>
<name>
<surname>Hughes</surname>
<given-names>J.</given-names>
</name>
<name>
<surname>Murcia</surname>
<given-names>P.R.</given-names>
</name>
</person-group>
<article-title>Origins and evolutionary dynamics of H3N2 canine influenza virus</article-title>
<source>J. Virol.</source>
<year>2015</year>
<volume>89</volume>
<fpage>5406</fpage>
<pub-id pub-id-type="doi">10.1128/JVI.03395-14</pub-id>
<pub-id pub-id-type="pmid">25740996</pub-id>
</element-citation>
</ref>
<ref id="B37-viruses-11-00561">
<label>37.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Bodewes</surname>
<given-names>R.</given-names>
</name>
<name>
<surname>Bestebroer</surname>
<given-names>T.M.</given-names>
</name>
<name>
<surname>van der Vries</surname>
<given-names>E.</given-names>
</name>
<name>
<surname>Verhagen</surname>
<given-names>J.H.</given-names>
</name>
<name>
<surname>Herfst</surname>
<given-names>S.</given-names>
</name>
<name>
<surname>Koopmans</surname>
<given-names>M.P.</given-names>
</name>
<name>
<surname>Fouchier</surname>
<given-names>R.A.</given-names>
</name>
<name>
<surname>Pfankuche</surname>
<given-names>V.M.</given-names>
</name>
<name>
<surname>Wohlsein</surname>
<given-names>P.</given-names>
</name>
<name>
<surname>Siebert</surname>
<given-names>U.</given-names>
</name>
<etal></etal>
</person-group>
<article-title>Avian Influenza A(H10N7) virus-associated mass deaths among harbor seals</article-title>
<source>Emerg. Infect. Dis.</source>
<year>2015</year>
<volume>21</volume>
<fpage>720</fpage>
<lpage>722</lpage>
<pub-id pub-id-type="doi">10.3201/eid2104.141675</pub-id>
<pub-id pub-id-type="pmid">25811303</pub-id>
</element-citation>
</ref>
<ref id="B38-viruses-11-00561">
<label>38.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Berg</surname>
<given-names>M.</given-names>
</name>
<name>
<surname>Englund</surname>
<given-names>L.</given-names>
</name>
<name>
<surname>Abusugra</surname>
<given-names>I.A.</given-names>
</name>
<name>
<surname>Klingeborn</surname>
<given-names>B.</given-names>
</name>
<name>
<surname>Linne</surname>
<given-names>T.</given-names>
</name>
</person-group>
<article-title>Close relationship between mink influenza (H10N4) and concomitantly circulating avian influenza viruses</article-title>
<source>Arch. Virol.</source>
<year>1990</year>
<volume>113</volume>
<fpage>61</fpage>
<lpage>71</lpage>
<pub-id pub-id-type="doi">10.1007/BF01318353</pub-id>
<pub-id pub-id-type="pmid">2167060</pub-id>
</element-citation>
</ref>
<ref id="B39-viruses-11-00561">
<label>39.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Englund</surname>
<given-names>L.</given-names>
</name>
</person-group>
<article-title>Studies on influenza viruses H10N4 and H10N7 of avian origin in mink</article-title>
<source>Vet. Microbiol.</source>
<year>2000</year>
<volume>74</volume>
<fpage>101</fpage>
<lpage>107</lpage>
<pub-id pub-id-type="doi">10.1016/S0378-1135(00)00170-X</pub-id>
<pub-id pub-id-type="pmid">10799782</pub-id>
</element-citation>
</ref>
<ref id="B40-viruses-11-00561">
<label>40.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Englund</surname>
<given-names>L.</given-names>
</name>
<name>
<surname>Klingeborn</surname>
<given-names>B.</given-names>
</name>
<name>
<surname>Mejerland</surname>
<given-names>T.</given-names>
</name>
</person-group>
<article-title>Avian influenza A virus causing an outbreak of contagious interstitial pneumonia in mink</article-title>
<source>Acta Vet. Scand.</source>
<year>1986</year>
<volume>27</volume>
<fpage>497</fpage>
<lpage>504</lpage>
<pub-id pub-id-type="pmid">3604824</pub-id>
</element-citation>
</ref>
<ref id="B41-viruses-11-00561">
<label>41.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Feldmann</surname>
<given-names>H.</given-names>
</name>
<name>
<surname>Kretzschmar</surname>
<given-names>E.</given-names>
</name>
<name>
<surname>Klingeborn</surname>
<given-names>B.</given-names>
</name>
<name>
<surname>Rott</surname>
<given-names>R.</given-names>
</name>
<name>
<surname>Klenk</surname>
<given-names>H.D.</given-names>
</name>
<name>
<surname>Garten</surname>
<given-names>W.</given-names>
</name>
</person-group>
<article-title>The structure of serotype H10 hemagglutinin of influenza A virus: Comparison of an apathogenic avian and a mammalian strain pathogenic for mink</article-title>
<source>Virology</source>
<year>1988</year>
<volume>165</volume>
<fpage>428</fpage>
<lpage>437</lpage>
<pub-id pub-id-type="doi">10.1016/0042-6822(88)90586-7</pub-id>
<pub-id pub-id-type="pmid">3407149</pub-id>
</element-citation>
</ref>
<ref id="B42-viruses-11-00561">
<label>42.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Peng</surname>
<given-names>L.</given-names>
</name>
<name>
<surname>Chen</surname>
<given-names>C.</given-names>
</name>
<name>
<surname>Kai-yi</surname>
<given-names>H.</given-names>
</name>
<name>
<surname>Feng-xia</surname>
<given-names>Z.</given-names>
</name>
<name>
<surname>Yan-li</surname>
<given-names>Z.</given-names>
</name>
<name>
<surname>Zong-shuai</surname>
<given-names>L.</given-names>
</name>
<name>
<surname>Xing-xiao</surname>
<given-names>Z.</given-names>
</name>
<name>
<surname>Shi-jin</surname>
<given-names>J.</given-names>
</name>
<name>
<surname>Zhi-jing</surname>
<given-names>X.</given-names>
</name>
</person-group>
<article-title>Molecular characterization of H9N2 influenza virus isolated from mink and its pathogenesis in mink</article-title>
<source>Vet. Microbiol.</source>
<year>2015</year>
<volume>176</volume>
<fpage>88</fpage>
<lpage>96</lpage>
<pub-id pub-id-type="doi">10.1016/j.vetmic.2015.01.009</pub-id>
<pub-id pub-id-type="pmid">25655813</pub-id>
</element-citation>
</ref>
<ref id="B43-viruses-11-00561">
<label>43.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Tremblay</surname>
<given-names>D.</given-names>
</name>
<name>
<surname>Allard</surname>
<given-names>V.</given-names>
</name>
<name>
<surname>Doyon</surname>
<given-names>J.F.</given-names>
</name>
<name>
<surname>Bellehumeur</surname>
<given-names>C.</given-names>
</name>
<name>
<surname>Spearman</surname>
<given-names>J.G.</given-names>
</name>
<name>
<surname>Harel</surname>
<given-names>J.</given-names>
</name>
<name>
<surname>Gagnon</surname>
<given-names>C.A.</given-names>
</name>
</person-group>
<article-title>Emerg.ence of a new swine H3N2 and pandemic (H1N1) 2009 influenza A virus reassortant in two Canadian animal populations, mink and swine</article-title>
<source>J. Clin. Microbiol.</source>
<year>2011</year>
<volume>49</volume>
<fpage>4386</fpage>
<lpage>4390</lpage>
<pub-id pub-id-type="doi">10.1128/JCM.05676-11</pub-id>
<pub-id pub-id-type="pmid">22012020</pub-id>
</element-citation>
</ref>
<ref id="B44-viruses-11-00561">
<label>44.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Yoon</surname>
<given-names>K.J.</given-names>
</name>
<name>
<surname>Schwartz</surname>
<given-names>K.</given-names>
</name>
<name>
<surname>Sun</surname>
<given-names>D.</given-names>
</name>
<name>
<surname>Zhang</surname>
<given-names>J.</given-names>
</name>
<name>
<surname>Hildebrandt</surname>
<given-names>H.</given-names>
</name>
</person-group>
<article-title>Naturally occurring Influenza A virus subtype H1N2 infection in a Midwest United States mink (Mustela vison) ranch</article-title>
<source>J. Vet. Diagn Investig.</source>
<year>2012</year>
<volume>24</volume>
<fpage>388</fpage>
<lpage>391</lpage>
<pub-id pub-id-type="doi">10.1177/1040638711428349</pub-id>
<pub-id pub-id-type="pmid">22362526</pub-id>
</element-citation>
</ref>
<ref id="B45-viruses-11-00561">
<label>45.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Fatkhuddinova</surname>
<given-names>M.F.</given-names>
</name>
<name>
<surname>Kir’ianova</surname>
<given-names>A.I.</given-names>
</name>
<name>
<surname>Isachenko</surname>
<given-names>V.A.</given-names>
</name>
<name>
<surname>Zakstel’skaia</surname>
<given-names>L.</given-names>
</name>
</person-group>
<article-title>Isolation and identification of the A-Hong Kong (H3N2) virus in respiratory diseases of cattle</article-title>
<source>Vopr. Virusol.</source>
<year>1973</year>
<volume>18</volume>
<fpage>474</fpage>
<lpage>478</lpage>
<pub-id pub-id-type="pmid">4274331</pub-id>
</element-citation>
</ref>
<ref id="B46-viruses-11-00561">
<label>46.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Tanyi</surname>
<given-names>J.</given-names>
</name>
<name>
<surname>Romvary</surname>
<given-names>J.</given-names>
</name>
<name>
<surname>Aldasy</surname>
<given-names>P.</given-names>
</name>
<name>
<surname>Mathe</surname>
<given-names>Z.</given-names>
</name>
</person-group>
<article-title>Isolation of influenza a virus strains from cattle. Preliminary report</article-title>
<source>Acta Vet. Acad. Sci. Hung.</source>
<year>1974</year>
<volume>24</volume>
<fpage>341</fpage>
<lpage>343</lpage>
<pub-id pub-id-type="pmid">4456999</pub-id>
</element-citation>
</ref>
<ref id="B47-viruses-11-00561">
<label>47.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Lopez</surname>
<given-names>J.W.</given-names>
</name>
<name>
<surname>Woods</surname>
<given-names>G.T.</given-names>
</name>
</person-group>
<article-title>Influenza virus in ruminants: A review</article-title>
<source>Res. Commun. Chem. Pathol. Pharmacol.</source>
<year>1984</year>
<volume>45</volume>
<fpage>445</fpage>
<lpage>462</lpage>
<pub-id pub-id-type="pmid">6390588</pub-id>
</element-citation>
</ref>
<ref id="B48-viruses-11-00561">
<label>48.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Campbell</surname>
<given-names>C.H.</given-names>
</name>
<name>
<surname>Easterday</surname>
<given-names>B.C.</given-names>
</name>
<name>
<surname>Webster</surname>
<given-names>R.G.</given-names>
</name>
</person-group>
<article-title>Strains of Hong Kong influenza virus in calves</article-title>
<source>J. Infect. Dis.</source>
<year>1977</year>
<volume>135</volume>
<fpage>678</fpage>
<lpage>680</lpage>
<pub-id pub-id-type="doi">10.1093/infdis/135.4.678</pub-id>
<pub-id pub-id-type="pmid">853249</pub-id>
</element-citation>
</ref>
<ref id="B49-viruses-11-00561">
<label>49.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Bodewes</surname>
<given-names>R.</given-names>
</name>
<name>
<surname>Morick</surname>
<given-names>D.</given-names>
</name>
<name>
<surname>de Mutsert</surname>
<given-names>G.</given-names>
</name>
<name>
<surname>Osinga</surname>
<given-names>N.</given-names>
</name>
<name>
<surname>Bestebroer</surname>
<given-names>T.</given-names>
</name>
<name>
<surname>van der Vliet</surname>
<given-names>S.</given-names>
</name>
<name>
<surname>Smits</surname>
<given-names>S.L.</given-names>
</name>
<name>
<surname>Kuiken</surname>
<given-names>T.</given-names>
</name>
<name>
<surname>Rimmelzwaan</surname>
<given-names>G.F.</given-names>
</name>
<name>
<surname>Fouchier</surname>
<given-names>R.A.</given-names>
</name>
<etal></etal>
</person-group>
<article-title>Recurring influenza B virus infections in seals</article-title>
<source>Emerg. Infect. Dis.</source>
<year>2013</year>
<volume>19</volume>
<fpage>511</fpage>
<lpage>512</lpage>
<pub-id pub-id-type="doi">10.3201/eid1903.120965</pub-id>
<pub-id pub-id-type="pmid">23750359</pub-id>
</element-citation>
</ref>
<ref id="B50-viruses-11-00561">
<label>50.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Osterhaus</surname>
<given-names>A.D.</given-names>
</name>
<name>
<surname>Rimmelzwaan</surname>
<given-names>G.F.</given-names>
</name>
<name>
<surname>Martina</surname>
<given-names>B.E.</given-names>
</name>
<name>
<surname>Bestebroer</surname>
<given-names>T.M.</given-names>
</name>
<name>
<surname>Fouchier</surname>
<given-names>R.A.</given-names>
</name>
</person-group>
<article-title>Influenza B virus in seals</article-title>
<source>Science</source>
<year>2000</year>
<volume>288</volume>
<fpage>1051</fpage>
<lpage>1053</lpage>
<pub-id pub-id-type="doi">10.1126/science.288.5468.1051</pub-id>
<pub-id pub-id-type="pmid">10807575</pub-id>
</element-citation>
</ref>
<ref id="B51-viruses-11-00561">
<label>51.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Paules</surname>
<given-names>C.</given-names>
</name>
<name>
<surname>Subbarao</surname>
<given-names>K.</given-names>
</name>
</person-group>
<article-title>Influenza</article-title>
<source>Lancet</source>
<year>2017</year>
<volume>390</volume>
<fpage>697</fpage>
<lpage>708</lpage>
<pub-id pub-id-type="doi">10.1016/S0140-6736(17)30129-0</pub-id>
<pub-id pub-id-type="pmid">28302313</pub-id>
</element-citation>
</ref>
<ref id="B52-viruses-11-00561">
<label>52.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Takatsy</surname>
<given-names>G.Y.</given-names>
</name>
<name>
<surname>Farkas</surname>
<given-names>E.</given-names>
</name>
<name>
<surname>Romvary</surname>
<given-names>J.</given-names>
</name>
</person-group>
<article-title>Susceptibility of the domestic pig to influenza B virus</article-title>
<source>Nature</source>
<year>1969</year>
<volume>222</volume>
<fpage>184</fpage>
<lpage>185</lpage>
<pub-id pub-id-type="doi">10.1038/222184a0</pub-id>
<pub-id pub-id-type="pmid">4304929</pub-id>
</element-citation>
</ref>
<ref id="B53-viruses-11-00561">
<label>53.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Ran</surname>
<given-names>Z.</given-names>
</name>
<name>
<surname>Shen</surname>
<given-names>H.</given-names>
</name>
<name>
<surname>Lang</surname>
<given-names>Y.</given-names>
</name>
<name>
<surname>Kolb</surname>
<given-names>E.A.</given-names>
</name>
<name>
<surname>Turan</surname>
<given-names>N.</given-names>
</name>
<name>
<surname>Zhu</surname>
<given-names>L.</given-names>
</name>
<name>
<surname>Ma</surname>
<given-names>J.</given-names>
</name>
<name>
<surname>Bawa</surname>
<given-names>B.</given-names>
</name>
<name>
<surname>Liu</surname>
<given-names>Q.</given-names>
</name>
<name>
<surname>Liu</surname>
<given-names>H.</given-names>
</name>
<etal></etal>
</person-group>
<article-title>Domestic pigs are susceptible to infection with influenza B viruses</article-title>
<source>J. Virol.</source>
<year>2015</year>
<volume>89</volume>
<fpage>4818</fpage>
<lpage>4826</lpage>
<pub-id pub-id-type="doi">10.1128/JVI.00059-15</pub-id>
<pub-id pub-id-type="pmid">25673727</pub-id>
</element-citation>
</ref>
<ref id="B54-viruses-11-00561">
<label>54.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Chang</surname>
<given-names>C.P.</given-names>
</name>
<name>
<surname>New</surname>
<given-names>A.E.</given-names>
</name>
<name>
<surname>Taylor</surname>
<given-names>J.F.</given-names>
</name>
<name>
<surname>Chiang</surname>
<given-names>H.S.</given-names>
</name>
</person-group>
<article-title>Influenza virus isolations from dogs during a human epidemic in Taiwan</article-title>
<source>Int. J. Zoonoses</source>
<year>1976</year>
<volume>3</volume>
<fpage>61</fpage>
<lpage>64</lpage>
<pub-id pub-id-type="pmid">977232</pub-id>
</element-citation>
</ref>
<ref id="B55-viruses-11-00561">
<label>55.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Ditchfield</surname>
<given-names>J.</given-names>
</name>
<name>
<surname>Macpherson</surname>
<given-names>L.W.</given-names>
</name>
</person-group>
<article-title>Upper respiratory disease in thoroughbred horses: Studies of its viral etiology in the Toronto area, 1960 to 1963</article-title>
<source>Can. J. Comp. Med. Vet. Sci.</source>
<year>1965</year>
<volume>29</volume>
<fpage>18</fpage>
<lpage>22</lpage>
<pub-id pub-id-type="pmid">14230908</pub-id>
</element-citation>
</ref>
<ref id="B56-viruses-11-00561">
<label>56.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Kawano</surname>
<given-names>J.</given-names>
</name>
<name>
<surname>Onta</surname>
<given-names>T.</given-names>
</name>
<name>
<surname>Kida</surname>
<given-names>H.</given-names>
</name>
<name>
<surname>Yanagawa</surname>
<given-names>R.</given-names>
</name>
</person-group>
<article-title>Distribution of antibodies in animals against influenza B and C viruses</article-title>
<source>Jpn. J. Vet. Res.</source>
<year>1978</year>
<volume>26</volume>
<fpage>74</fpage>
<lpage>80</lpage>
<pub-id pub-id-type="pmid">739713</pub-id>
</element-citation>
</ref>
<ref id="B57-viruses-11-00561">
<label>57.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Anton</surname>
<given-names>A.</given-names>
</name>
<name>
<surname>Marcos</surname>
<given-names>M.A.</given-names>
</name>
<name>
<surname>Codoner</surname>
<given-names>F.M.</given-names>
</name>
<name>
<surname>de Molina</surname>
<given-names>P.</given-names>
</name>
<name>
<surname>Martinez</surname>
<given-names>A.</given-names>
</name>
<name>
<surname>Cardenosa</surname>
<given-names>N.</given-names>
</name>
<name>
<surname>Godoy</surname>
<given-names>P.</given-names>
</name>
<name>
<surname>Torner</surname>
<given-names>N.</given-names>
</name>
<name>
<surname>Martinez</surname>
<given-names>M.J.</given-names>
</name>
<name>
<surname>Ramon</surname>
<given-names>S.</given-names>
</name>
<etal></etal>
</person-group>
<article-title>Influenza C virus surveillance during the first influenza A (H1N1) 2009 pandemic wave in Catalonia, Spain</article-title>
<source>Diagn. Microbiol. Infect. Dis.</source>
<year>2011</year>
<volume>69</volume>
<fpage>419</fpage>
<lpage>427</lpage>
<pub-id pub-id-type="doi">10.1016/j.diagmicrobio.2010.11.006</pub-id>
<pub-id pub-id-type="pmid">21396539</pub-id>
</element-citation>
</ref>
<ref id="B58-viruses-11-00561">
<label>58.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Brown</surname>
<given-names>I.H.</given-names>
</name>
<name>
<surname>Harris</surname>
<given-names>P.A.</given-names>
</name>
<name>
<surname>Alexander</surname>
<given-names>D.J.</given-names>
</name>
</person-group>
<article-title>Serological studies of influenza viruses in pigs in Great Britain 1991–2</article-title>
<source>Epidemiol. Infect.</source>
<year>1995</year>
<volume>114</volume>
<fpage>511</fpage>
<lpage>520</lpage>
<pub-id pub-id-type="doi">10.1017/S0950268800052225</pub-id>
<pub-id pub-id-type="pmid">7781739</pub-id>
</element-citation>
</ref>
<ref id="B59-viruses-11-00561">
<label>59.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Kimura</surname>
<given-names>H.</given-names>
</name>
<name>
<surname>Abiko</surname>
<given-names>C.</given-names>
</name>
<name>
<surname>Peng</surname>
<given-names>G.</given-names>
</name>
<name>
<surname>Muraki</surname>
<given-names>Y.</given-names>
</name>
<name>
<surname>Sugawara</surname>
<given-names>K.</given-names>
</name>
<name>
<surname>Hongo</surname>
<given-names>S.</given-names>
</name>
<name>
<surname>Kitame</surname>
<given-names>F.</given-names>
</name>
<name>
<surname>Mizuta</surname>
<given-names>K.</given-names>
</name>
<name>
<surname>Numazaki</surname>
<given-names>Y.</given-names>
</name>
<name>
<surname>Suzuki</surname>
<given-names>H.</given-names>
</name>
<etal></etal>
</person-group>
<article-title>Interspecies transmission of influenza C virus between humans and pigs</article-title>
<source>Virus Res.</source>
<year>1997</year>
<volume>48</volume>
<fpage>71</fpage>
<lpage>79</lpage>
<pub-id pub-id-type="doi">10.1016/S0168-1702(96)01427-X</pub-id>
<pub-id pub-id-type="pmid">9140195</pub-id>
</element-citation>
</ref>
<ref id="B60-viruses-11-00561">
<label>60.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Guo</surname>
<given-names>Y.J.</given-names>
</name>
<name>
<surname>Jin</surname>
<given-names>F.G.</given-names>
</name>
<name>
<surname>Wang</surname>
<given-names>P.</given-names>
</name>
<name>
<surname>Wang</surname>
<given-names>M.</given-names>
</name>
<name>
<surname>Zhu</surname>
<given-names>J.M.</given-names>
</name>
</person-group>
<article-title>Isolation of influenza C virus from pigs and experimental infection of pigs with influenza C virus</article-title>
<source>J. Gen. Virol.</source>
<year>1983</year>
<volume>64</volume>
<fpage>177</fpage>
<lpage>182</lpage>
<pub-id pub-id-type="pmid">6296296</pub-id>
</element-citation>
</ref>
<ref id="B61-viruses-11-00561">
<label>61.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Nedland</surname>
<given-names>H.</given-names>
</name>
<name>
<surname>Wollman</surname>
<given-names>J.</given-names>
</name>
<name>
<surname>Sreenivasan</surname>
<given-names>C.</given-names>
</name>
<name>
<surname>Quast</surname>
<given-names>M.</given-names>
</name>
<name>
<surname>Singrey</surname>
<given-names>A.</given-names>
</name>
<name>
<surname>Fawcett</surname>
<given-names>L.</given-names>
</name>
<name>
<surname>Christopher-Hennings</surname>
<given-names>J.</given-names>
</name>
<name>
<surname>Nelson</surname>
<given-names>E.</given-names>
</name>
<name>
<surname>Kaushik</surname>
<given-names>R.S.</given-names>
</name>
<name>
<surname>Wang</surname>
<given-names>D.</given-names>
</name>
<etal></etal>
</person-group>
<article-title>Serological evidence for the co-circulation of two lineages of influenza D viruses in equine populations of the Midwest United States</article-title>
<source>Zoonoses Public Health</source>
<year>2018</year>
<volume>65</volume>
<fpage>e148</fpage>
<lpage>e154</lpage>
<pub-id pub-id-type="doi">10.1111/zph.12423</pub-id>
<pub-id pub-id-type="pmid">29139222</pub-id>
</element-citation>
</ref>
<ref id="B62-viruses-11-00561">
<label>62.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Zhang</surname>
<given-names>H.</given-names>
</name>
<name>
<surname>Porter</surname>
<given-names>E.</given-names>
</name>
<name>
<surname>Lohman</surname>
<given-names>M.</given-names>
</name>
<name>
<surname>Lu</surname>
<given-names>N.</given-names>
</name>
<name>
<surname>Peddireddi</surname>
<given-names>L.</given-names>
</name>
<name>
<surname>Hanzlicek</surname>
<given-names>G.</given-names>
</name>
<name>
<surname>Marthaler</surname>
<given-names>D.</given-names>
</name>
<name>
<surname>Liu</surname>
<given-names>X.</given-names>
</name>
<name>
<surname>Bai</surname>
<given-names>J.</given-names>
</name>
</person-group>
<article-title>Influenza C virus in cattle with respiratory disease, United States, 2016–2018</article-title>
<source>Emerg. Infect. Dis.</source>
<year>2018</year>
<volume>24</volume>
<fpage>1926</fpage>
<lpage>1929</lpage>
<pub-id pub-id-type="doi">10.3201/eid2410.180589</pub-id>
<pub-id pub-id-type="pmid">30226175</pub-id>
</element-citation>
</ref>
<ref id="B63-viruses-11-00561">
<label>63.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Zhang</surname>
<given-names>M.</given-names>
</name>
<name>
<surname>Hill</surname>
<given-names>J.E.</given-names>
</name>
<name>
<surname>Fernando</surname>
<given-names>C.</given-names>
</name>
<name>
<surname>Alexander</surname>
<given-names>T.W.</given-names>
</name>
<name>
<surname>Timsit</surname>
<given-names>E.</given-names>
</name>
<name>
<surname>van der Meer</surname>
<given-names>F.</given-names>
</name>
<name>
<surname>Huang</surname>
<given-names>Y.</given-names>
</name>
</person-group>
<article-title>Respiratory viruses identified in western Canadian beef cattle by metagenomic sequencing and their association with bovine respiratory disease</article-title>
<source>Transbound. Emerg. Dis.</source>
<year>2019</year>
<volume>66</volume>
<fpage>1379</fpage>
<lpage>1386</lpage>
<pub-id pub-id-type="doi">10.1111/tbed.13172</pub-id>
<pub-id pub-id-type="pmid">30873724</pub-id>
</element-citation>
</ref>
<ref id="B64-viruses-11-00561">
<label>64.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Ferguson</surname>
<given-names>L.</given-names>
</name>
<name>
<surname>Eckard</surname>
<given-names>L.</given-names>
</name>
<name>
<surname>Epperson</surname>
<given-names>W.B.</given-names>
</name>
<name>
<surname>Long</surname>
<given-names>L.P.</given-names>
</name>
<name>
<surname>Smith</surname>
<given-names>D.</given-names>
</name>
<name>
<surname>Huston</surname>
<given-names>C.</given-names>
</name>
<name>
<surname>Genova</surname>
<given-names>S.</given-names>
</name>
<name>
<surname>Webby</surname>
<given-names>R.</given-names>
</name>
<name>
<surname>Wan</surname>
<given-names>X.F.</given-names>
</name>
</person-group>
<article-title>Influenza D virus infection in Mississippi beef cattle</article-title>
<source>Virology</source>
<year>2015</year>
<volume>486</volume>
<fpage>28</fpage>
<lpage>34</lpage>
<pub-id pub-id-type="doi">10.1016/j.virol.2015.08.030</pub-id>
<pub-id pub-id-type="pmid">26386554</pub-id>
</element-citation>
</ref>
<ref id="B65-viruses-11-00561">
<label>65.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Hause</surname>
<given-names>B.M.</given-names>
</name>
<name>
<surname>Ducatez</surname>
<given-names>M.</given-names>
</name>
<name>
<surname>Collin</surname>
<given-names>E.A.</given-names>
</name>
<name>
<surname>Ran</surname>
<given-names>Z.</given-names>
</name>
<name>
<surname>Liu</surname>
<given-names>R.</given-names>
</name>
<name>
<surname>Sheng</surname>
<given-names>Z.</given-names>
</name>
<name>
<surname>Armien</surname>
<given-names>A.</given-names>
</name>
<name>
<surname>Kaplan</surname>
<given-names>B.</given-names>
</name>
<name>
<surname>Chakravarty</surname>
<given-names>S.</given-names>
</name>
<name>
<surname>Hoppe</surname>
<given-names>A.D.</given-names>
</name>
<etal></etal>
</person-group>
<article-title>Isolation of a novel swine influenza virus from Oklahoma in 2011 which is distantly related to human influenza C viruses</article-title>
<source>PLoS Pathog.</source>
<year>2013</year>
<volume>9</volume>
<elocation-id>e1003176</elocation-id>
<pub-id pub-id-type="doi">10.1371/journal.ppat.1003176</pub-id>
<pub-id pub-id-type="pmid">23408893</pub-id>
</element-citation>
</ref>
<ref id="B66-viruses-11-00561">
<label>66.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Luo</surname>
<given-names>J.</given-names>
</name>
<name>
<surname>Ferguson</surname>
<given-names>L.</given-names>
</name>
<name>
<surname>Smith</surname>
<given-names>D.R.</given-names>
</name>
<name>
<surname>Woolums</surname>
<given-names>A.R.</given-names>
</name>
<name>
<surname>Epperson</surname>
<given-names>W.B.</given-names>
</name>
<name>
<surname>Wan</surname>
<given-names>X.F.</given-names>
</name>
</person-group>
<article-title>Serological evidence for high prevalence of Influenza D Viruses in Cattle, Nebraska, United States, 2003–2004</article-title>
<source>Virology</source>
<year>2017</year>
<volume>501</volume>
<fpage>88</fpage>
<lpage>91</lpage>
<pub-id pub-id-type="doi">10.1016/j.virol.2016.11.004</pub-id>
<pub-id pub-id-type="pmid">27888742</pub-id>
</element-citation>
</ref>
<ref id="B67-viruses-11-00561">
<label>67.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Murakami</surname>
<given-names>S.</given-names>
</name>
<name>
<surname>Endoh</surname>
<given-names>M.</given-names>
</name>
<name>
<surname>Kobayashi</surname>
<given-names>T.</given-names>
</name>
<name>
<surname>Takenaka-Uema</surname>
<given-names>A.</given-names>
</name>
<name>
<surname>Chambers</surname>
<given-names>J.K.</given-names>
</name>
<name>
<surname>Uchida</surname>
<given-names>K.</given-names>
</name>
<name>
<surname>Nishihara</surname>
<given-names>M.</given-names>
</name>
<name>
<surname>Hause</surname>
<given-names>B.</given-names>
</name>
<name>
<surname>Horimoto</surname>
<given-names>T.</given-names>
</name>
</person-group>
<article-title>Influenza D virus infection in herd of cattle, Japan</article-title>
<source>Emerg. Infect. Dis.</source>
<year>2016</year>
<volume>22</volume>
<fpage>1517</fpage>
<lpage>1519</lpage>
<pub-id pub-id-type="doi">10.3201/eid2208.160362</pub-id>
<pub-id pub-id-type="pmid">27434213</pub-id>
</element-citation>
</ref>
<ref id="B68-viruses-11-00561">
<label>68.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Snoeck</surname>
<given-names>C.J.</given-names>
</name>
<name>
<surname>Oliva</surname>
<given-names>J.</given-names>
</name>
<name>
<surname>Pauly</surname>
<given-names>M.</given-names>
</name>
<name>
<surname>Losch</surname>
<given-names>S.</given-names>
</name>
<name>
<surname>Wildschutz</surname>
<given-names>F.</given-names>
</name>
<name>
<surname>Muller</surname>
<given-names>C.P.</given-names>
</name>
<name>
<surname>Hubschen</surname>
<given-names>J.M.</given-names>
</name>
<name>
<surname>Ducatez</surname>
<given-names>M.F.</given-names>
</name>
</person-group>
<article-title>Influenza D virus circulation in cattle and swine, Luxembourg, 2012–2016</article-title>
<source>Emerg. Infect. Dis.</source>
<year>2018</year>
<volume>24</volume>
<fpage>1388</fpage>
<lpage>1389</lpage>
<pub-id pub-id-type="doi">10.3201/eid2407.171937</pub-id>
<pub-id pub-id-type="pmid">29912692</pub-id>
</element-citation>
</ref>
<ref id="B69-viruses-11-00561">
<label>69.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Ferguson</surname>
<given-names>L.</given-names>
</name>
<name>
<surname>Luo</surname>
<given-names>K.</given-names>
</name>
<name>
<surname>Olivier</surname>
<given-names>A.K.</given-names>
</name>
<name>
<surname>Cunningham</surname>
<given-names>F.L.</given-names>
</name>
<name>
<surname>Blackmon</surname>
<given-names>S.</given-names>
</name>
<name>
<surname>Hanson-Dorr</surname>
<given-names>K.</given-names>
</name>
<name>
<surname>Sun</surname>
<given-names>H.</given-names>
</name>
<name>
<surname>Baroch</surname>
<given-names>J.</given-names>
</name>
<name>
<surname>Lutman</surname>
<given-names>M.W.</given-names>
</name>
<name>
<surname>Quade</surname>
<given-names>B.</given-names>
</name>
<etal></etal>
</person-group>
<article-title>Influenza D Virus Infection in Feral Swine Populations, United States</article-title>
<source>Emerg. Infect. Dis.</source>
<year>2018</year>
<volume>24</volume>
<fpage>1020</fpage>
<lpage>1028</lpage>
<pub-id pub-id-type="doi">10.3201/eid2406.172102</pub-id>
<pub-id pub-id-type="pmid">29774857</pub-id>
</element-citation>
</ref>
<ref id="B70-viruses-11-00561">
<label>70.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Quast</surname>
<given-names>M.</given-names>
</name>
<name>
<surname>Sreenivasan</surname>
<given-names>C.</given-names>
</name>
<name>
<surname>Sexton</surname>
<given-names>G.</given-names>
</name>
<name>
<surname>Nedland</surname>
<given-names>H.</given-names>
</name>
<name>
<surname>Singrey</surname>
<given-names>A.</given-names>
</name>
<name>
<surname>Fawcett</surname>
<given-names>L.</given-names>
</name>
<name>
<surname>Miller</surname>
<given-names>G.</given-names>
</name>
<name>
<surname>Lauer</surname>
<given-names>D.</given-names>
</name>
<name>
<surname>Voss</surname>
<given-names>S.</given-names>
</name>
<name>
<surname>Pollock</surname>
<given-names>S.</given-names>
</name>
<etal></etal>
</person-group>
<article-title>Serological evidence for the presence of influenza D virus in small ruminants</article-title>
<source>Vet. Microbiol.</source>
<year>2015</year>
<volume>180</volume>
<fpage>281</fpage>
<lpage>285</lpage>
<pub-id pub-id-type="doi">10.1016/j.vetmic.2015.09.005</pub-id>
<pub-id pub-id-type="pmid">26414999</pub-id>
</element-citation>
</ref>
<ref id="B71-viruses-11-00561">
<label>71.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>White</surname>
<given-names>S.K.</given-names>
</name>
<name>
<surname>Ma</surname>
<given-names>W.</given-names>
</name>
<name>
<surname>McDaniel</surname>
<given-names>C.J.</given-names>
</name>
<name>
<surname>Gray</surname>
<given-names>G.C.</given-names>
</name>
<name>
<surname>Lednicky</surname>
<given-names>J.A.</given-names>
</name>
</person-group>
<article-title>Serologic evidence of exposure to influenza D virus among persons with occupational contact with cattle</article-title>
<source>J. Clin. Virol.</source>
<year>2016</year>
<volume>81</volume>
<fpage>31</fpage>
<lpage>33</lpage>
<pub-id pub-id-type="doi">10.1016/j.jcv.2016.05.017</pub-id>
<pub-id pub-id-type="pmid">27294672</pub-id>
</element-citation>
</ref>
<ref id="B72-viruses-11-00561">
<label>72.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Borkenhagen</surname>
<given-names>L.K.</given-names>
</name>
<name>
<surname>Mallinson</surname>
<given-names>K.A.</given-names>
</name>
<name>
<surname>Tsao</surname>
<given-names>R.W.</given-names>
</name>
<name>
<surname>Ha</surname>
<given-names>S.J.</given-names>
</name>
<name>
<surname>Lim</surname>
<given-names>W.H.</given-names>
</name>
<name>
<surname>Toh</surname>
<given-names>T.H.</given-names>
</name>
<name>
<surname>Anderson</surname>
<given-names>B.D.</given-names>
</name>
<name>
<surname>Fieldhouse</surname>
<given-names>J.K.</given-names>
</name>
<name>
<surname>Philo</surname>
<given-names>S.E.</given-names>
</name>
<name>
<surname>Chong</surname>
<given-names>K.S.</given-names>
</name>
<etal></etal>
</person-group>
<article-title>Surveillance for respiratory and diarrheal pathogens at the human-pig interface in Sarawak, Malaysia</article-title>
<source>PLoS ONE</source>
<year>2018</year>
<volume>13</volume>
<elocation-id>e0201295</elocation-id>
<pub-id pub-id-type="doi">10.1371/journal.pone.0201295</pub-id>
<pub-id pub-id-type="pmid">30052648</pub-id>
</element-citation>
</ref>
<ref id="B73-viruses-11-00561">
<label>73.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Choi</surname>
<given-names>J.Y.</given-names>
</name>
<name>
<surname>Zemke</surname>
<given-names>J.</given-names>
</name>
<name>
<surname>Philo</surname>
<given-names>S.E.</given-names>
</name>
<name>
<surname>Bailey</surname>
<given-names>E.S.</given-names>
</name>
<name>
<surname>Yondon</surname>
<given-names>M.</given-names>
</name>
<name>
<surname>Gray</surname>
<given-names>G.C.</given-names>
</name>
</person-group>
<article-title>Aerosol sampling in a hospital emergency room setting: A complementary surveillance method for the detection of respiratory viruses</article-title>
<source>Front. Public Health</source>
<year>2018</year>
<volume>6</volume>
<fpage>174</fpage>
<pub-id pub-id-type="doi">10.3389/fpubh.2018.00174</pub-id>
<pub-id pub-id-type="pmid">29963543</pub-id>
</element-citation>
</ref>
<ref id="B74-viruses-11-00561">
<label>74.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Bollongino</surname>
<given-names>R.</given-names>
</name>
<name>
<surname>Burger</surname>
<given-names>J.</given-names>
</name>
<name>
<surname>Powell</surname>
<given-names>A.</given-names>
</name>
<name>
<surname>Mashkour</surname>
<given-names>M.</given-names>
</name>
<name>
<surname>Vigne</surname>
<given-names>J.D.</given-names>
</name>
<name>
<surname>Thomas</surname>
<given-names>M.G.</given-names>
</name>
</person-group>
<article-title>Modern taurine cattle descended from small number of near-eastern founders</article-title>
<source>Mol. Biol. Evol.</source>
<year>2012</year>
<volume>29</volume>
<fpage>2101</fpage>
<lpage>2104</lpage>
<pub-id pub-id-type="doi">10.1093/molbev/mss092</pub-id>
<pub-id pub-id-type="pmid">22422765</pub-id>
</element-citation>
</ref>
<ref id="B75-viruses-11-00561">
<label>75.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Giuffra</surname>
<given-names>E.</given-names>
</name>
<name>
<surname>Kijas</surname>
<given-names>J.M.</given-names>
</name>
<name>
<surname>Amarger</surname>
<given-names>V.</given-names>
</name>
<name>
<surname>Carlborg</surname>
<given-names>O.</given-names>
</name>
<name>
<surname>Jeon</surname>
<given-names>J.T.</given-names>
</name>
<name>
<surname>Andersson</surname>
<given-names>L.</given-names>
</name>
</person-group>
<article-title>The origin of the domestic pig: Independent domestication and subsequent introgression</article-title>
<source>Genetics</source>
<year>2000</year>
<volume>154</volume>
<fpage>1785</fpage>
<lpage>1791</lpage>
<pub-id pub-id-type="pmid">10747069</pub-id>
</element-citation>
</ref>
<ref id="B76-viruses-11-00561">
<label>76.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Saito</surname>
<given-names>K.</given-names>
</name>
</person-group>
<article-title>An outbreak of cattle influenza in Japan in the fall of 1949</article-title>
<source>J. Am. Vet. Med. Assoc.</source>
<year>1951</year>
<volume>118</volume>
<fpage>316</fpage>
<lpage>319</lpage>
<pub-id pub-id-type="pmid">14832129</pub-id>
</element-citation>
</ref>
<ref id="B77-viruses-11-00561">
<label>77.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Reisinger</surname>
<given-names>R.C.</given-names>
</name>
</person-group>
<article-title>Parainfluenza 3 virus in cattle</article-title>
<source>Ann. N. Y. Acad. Sci.</source>
<year>1962</year>
<volume>101</volume>
<fpage>576</fpage>
<lpage>582</lpage>
<pub-id pub-id-type="doi">10.1111/j.1749-6632.1962.tb18898.x</pub-id>
<pub-id pub-id-type="pmid">13981516</pub-id>
</element-citation>
</ref>
<ref id="B78-viruses-11-00561">
<label>78.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Hoerlein</surname>
<given-names>A.B.</given-names>
</name>
<name>
<surname>Mansfield</surname>
<given-names>M.E.</given-names>
</name>
<name>
<surname>Abinanti</surname>
<given-names>F.R.</given-names>
</name>
<name>
<surname>Huebner</surname>
<given-names>R.J.</given-names>
</name>
</person-group>
<article-title>Studies of shipping fever of cattle. I. Para-influenza 3 virus antibodies in feeder calves</article-title>
<source>J. Am. Vet. Med. Assoc.</source>
<year>1959</year>
<volume>135</volume>
<fpage>153</fpage>
<lpage>160</lpage>
<pub-id pub-id-type="pmid">13672871</pub-id>
</element-citation>
</ref>
<ref id="B79-viruses-11-00561">
<label>79.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Madin</surname>
<given-names>S.H.</given-names>
</name>
<name>
<surname>McKercher</surname>
<given-names>D.G.</given-names>
</name>
<name>
<surname>York</surname>
<given-names>C.J.</given-names>
</name>
</person-group>
<article-title>Isolation of the infectious bovine rhinotracheitis virus</article-title>
<source>Science</source>
<year>1956</year>
<volume>124</volume>
<fpage>721</fpage>
<lpage>722</lpage>
<pub-id pub-id-type="doi">10.1126/science.124.3225.721</pub-id>
<pub-id pub-id-type="pmid">13371311</pub-id>
</element-citation>
</ref>
<ref id="B80-viruses-11-00561">
<label>80.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Noice</surname>
<given-names>F.</given-names>
</name>
<name>
<surname>Schipper</surname>
<given-names>I.A.</given-names>
</name>
</person-group>
<article-title>Isolation of mucosal disease virus by tissue cultures in mixture 199, Morgan, Morton and Parker</article-title>
<source>Proc. Soc. Exp. Biol. Med.</source>
<year>1959</year>
<volume>100</volume>
<fpage>84</fpage>
<lpage>86</lpage>
<pub-id pub-id-type="doi">10.3181/00379727-100-24532</pub-id>
<pub-id pub-id-type="pmid">13634044</pub-id>
</element-citation>
</ref>
<ref id="B81-viruses-11-00561">
<label>81.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Paccaud</surname>
<given-names>M.F.</given-names>
</name>
<name>
<surname>Jacquier</surname>
<given-names>C.</given-names>
</name>
</person-group>
<article-title>A respiratory syncytial virus of bovine origin</article-title>
<source>Arch. Gesamte Virusforsch.</source>
<year>1970</year>
<volume>30</volume>
<fpage>327</fpage>
<lpage>342</lpage>
<pub-id pub-id-type="doi">10.1007/BF01258363</pub-id>
<pub-id pub-id-type="pmid">4195627</pub-id>
</element-citation>
</ref>
<ref id="B82-viruses-11-00561">
<label>82.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Pritchard</surname>
<given-names>W.R.</given-names>
</name>
</person-group>
<article-title>The bovine viral diarrhea-mucosal disease complex</article-title>
<source>Adv. Vet. Sci.</source>
<year>1963</year>
<volume>8</volume>
<fpage>1</fpage>
<lpage>47</lpage>
<pub-id pub-id-type="pmid">14274098</pub-id>
</element-citation>
</ref>
<ref id="B83-viruses-11-00561">
<label>83.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Schiott</surname>
<given-names>C.R.</given-names>
</name>
<name>
<surname>Jensen</surname>
<given-names>C.H.</given-names>
</name>
</person-group>
<article-title>A mouse pathogenic strain of parainfluenza virus type 3 isolated from cattle</article-title>
<source>Acta Pathol. Microbiol. Scand.</source>
<year>1962</year>
<volume>56</volume>
<fpage>479</fpage>
<lpage>480</lpage>
<pub-id pub-id-type="doi">10.1111/j.1699-0463.1962.tb04202.x</pub-id>
<pub-id pub-id-type="pmid">13991770</pub-id>
</element-citation>
</ref>
<ref id="B84-viruses-11-00561">
<label>84.</label>
<element-citation publication-type="gov">
<person-group person-group-type="author">
<collab>USDA, Feedlot 2011</collab>
</person-group>
<article-title>Part IV: Health and Health Management on U.S. Feedlots with a Capacity of 1000 or More Head</article-title>
<year>2011</year>
<comment>Available online:
<ext-link ext-link-type="uri" xlink:href="https://www.aphis.usda.gov/animal_health/nahms/feedlot/downloads/feedlot2011/Feed11_dr_PartIV.pdf">https://www.aphis.usda.gov/animal_health/nahms/feedlot/downloads/feedlot2011/Feed11_dr_PartIV.pdf</ext-link>
</comment>
<date-in-citation content-type="access-date" iso-8601-date="2019-06-17">(accessed on 17 June 2019)</date-in-citation>
</element-citation>
</ref>
<ref id="B85-viruses-11-00561">
<label>85.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Mitra</surname>
<given-names>N.</given-names>
</name>
<name>
<surname>Cernicchiaro</surname>
<given-names>N.</given-names>
</name>
<name>
<surname>Torres</surname>
<given-names>S.</given-names>
</name>
<name>
<surname>Li</surname>
<given-names>F.</given-names>
</name>
<name>
<surname>Hause</surname>
<given-names>B.M.</given-names>
</name>
</person-group>
<article-title>Metagenomic characterization of the virome associated with bovine respiratory disease in feedlot cattle identified novel viruses and suggests an etiologic role for influenza D virus</article-title>
<source>J. Gen. Virol.</source>
<year>2016</year>
<volume>97</volume>
<fpage>1771</fpage>
<lpage>1784</lpage>
<pub-id pub-id-type="doi">10.1099/jgv.0.000492</pub-id>
<pub-id pub-id-type="pmid">27154756</pub-id>
</element-citation>
</ref>
<ref id="B86-viruses-11-00561">
<label>86.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Zhang</surname>
<given-names>H.</given-names>
</name>
<name>
<surname>Porter</surname>
<given-names>E.P.</given-names>
</name>
<name>
<surname>Lohman</surname>
<given-names>M.</given-names>
</name>
<name>
<surname>Lu</surname>
<given-names>N.</given-names>
</name>
<name>
<surname>Peddireddi</surname>
<given-names>L.</given-names>
</name>
<name>
<surname>Hanzlicek</surname>
<given-names>G.</given-names>
</name>
<name>
<surname>Marthaler</surname>
<given-names>D.</given-names>
</name>
<name>
<surname>Liu</surname>
<given-names>X.</given-names>
</name>
<name>
<surname>Bai</surname>
<given-names>J.</given-names>
</name>
</person-group>
<article-title>Complete genome sequence of an influenza C virus strain identified from a sick calf in the United States</article-title>
<source>Microbiol. Resour Announc.</source>
<year>2018</year>
<volume>7</volume>
<fpage>e00828-18</fpage>
<pub-id pub-id-type="doi">10.1128/MRA.00828-18</pub-id>
<pub-id pub-id-type="pmid">30533603</pub-id>
</element-citation>
</ref>
<ref id="B87-viruses-11-00561">
<label>87.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Hause</surname>
<given-names>B.M.</given-names>
</name>
<name>
<surname>Collin</surname>
<given-names>E.A.</given-names>
</name>
<name>
<surname>Liu</surname>
<given-names>R.</given-names>
</name>
<name>
<surname>Huang</surname>
<given-names>B.</given-names>
</name>
<name>
<surname>Sheng</surname>
<given-names>Z.</given-names>
</name>
<name>
<surname>Lu</surname>
<given-names>W.</given-names>
</name>
<name>
<surname>Wang</surname>
<given-names>D.</given-names>
</name>
<name>
<surname>Nelson</surname>
<given-names>E.A.</given-names>
</name>
<name>
<surname>Li</surname>
<given-names>F.</given-names>
</name>
</person-group>
<article-title>Characterization of a novel influenza virus in cattle and Swine: Proposal for a new genus in the Orthomyxoviridae family</article-title>
<source>MBio</source>
<year>2014</year>
<volume>5</volume>
<fpage>e00031-14</fpage>
<pub-id pub-id-type="doi">10.1128/mBio.00031-14</pub-id>
<pub-id pub-id-type="pmid">24595369</pub-id>
</element-citation>
</ref>
<ref id="B88-viruses-11-00561">
<label>88.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Romvary</surname>
<given-names>J.</given-names>
</name>
<name>
<surname>Takatsy</surname>
<given-names>G.</given-names>
</name>
<name>
<surname>Barb</surname>
<given-names>K.</given-names>
</name>
<name>
<surname>Farkas</surname>
<given-names>E.</given-names>
</name>
</person-group>
<article-title>Isolation of influenza virus strains from animals</article-title>
<source>Nature</source>
<year>1962</year>
<volume>193</volume>
<fpage>907</fpage>
<lpage>908</lpage>
<pub-id pub-id-type="doi">10.1038/193907a0</pub-id>
<pub-id pub-id-type="pmid">14493640</pub-id>
</element-citation>
</ref>
<ref id="B89-viruses-11-00561">
<label>89.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Isachenko</surname>
<given-names>V.A.</given-names>
</name>
<name>
<surname>Molibog</surname>
<given-names>E.V.</given-names>
</name>
<name>
<surname>Zakstel’skaia</surname>
<given-names>L.</given-names>
</name>
</person-group>
<article-title>Antigenic characteristics of the influenza viruses isolated from domestic animals and birds in the USSR</article-title>
<source>Vopr. Virusol.</source>
<year>1973</year>
<volume>18</volume>
<fpage>700</fpage>
<lpage>705</lpage>
<pub-id pub-id-type="pmid">4789982</pub-id>
</element-citation>
</ref>
<ref id="B90-viruses-11-00561">
<label>90.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Izmailov</surname>
<given-names>I.A.</given-names>
</name>
<name>
<surname>Atamas</surname>
<given-names>V.A.</given-names>
</name>
<name>
<surname>Kniazeva</surname>
<given-names>N.I.</given-names>
</name>
<name>
<surname>Petrova</surname>
<given-names>M.S.</given-names>
</name>
<name>
<surname>Kaimakan</surname>
<given-names>P.V.</given-names>
</name>
</person-group>
<article-title>Outbreak of influenza among cattle</article-title>
<source>Veterinariia</source>
<year>1973</year>
<volume>49</volume>
<fpage>69</fpage>
<lpage>70</lpage>
</element-citation>
</ref>
<ref id="B91-viruses-11-00561">
<label>91.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Koval’chuk-Ivaniuk</surname>
<given-names>T.V.</given-names>
</name>
<name>
<surname>Stel’makh</surname>
<given-names>S.G.</given-names>
</name>
<name>
<surname>Shablovskaia</surname>
<given-names>E.A.</given-names>
</name>
<name>
<surname>Repko</surname>
<given-names>A.N.</given-names>
</name>
<name>
<surname>Zlonkevich Ia</surname>
<given-names>D.</given-names>
</name>
</person-group>
<article-title>Results of an examination of cattle for influenza</article-title>
<source>Vopr. Virusol.</source>
<year>1977</year>
<volume>4</volume>
<fpage>418</fpage>
<lpage>421</lpage>
</element-citation>
</ref>
<ref id="B92-viruses-11-00561">
<label>92.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Smetain</surname>
<given-names>M.A.</given-names>
</name>
<name>
<surname>Gaffarov Kh</surname>
<given-names>Z.</given-names>
</name>
<name>
<surname>Vakhrameev</surname>
<given-names>V.I.</given-names>
</name>
<name>
<surname>Egorchev</surname>
<given-names>I.V.</given-names>
</name>
</person-group>
<article-title>Study of cattle influenza</article-title>
<source>Veterinariia</source>
<year>1976</year>
<volume>12</volume>
<fpage>35</fpage>
<lpage>36</lpage>
</element-citation>
</ref>
<ref id="B93-viruses-11-00561">
<label>93.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Wagner</surname>
<given-names>K.</given-names>
</name>
<name>
<surname>Becker</surname>
<given-names>W.</given-names>
</name>
<name>
<surname>Bromel</surname>
<given-names>J.</given-names>
</name>
</person-group>
<article-title>Influenza of cattle. Enzootic bronchopneumonia of cattle</article-title>
<source>Tierarztl. Prax.</source>
<year>1978</year>
<volume>6</volume>
<fpage>51</fpage>
<lpage>61</lpage>
<pub-id pub-id-type="pmid">205973</pub-id>
</element-citation>
</ref>
<ref id="B94-viruses-11-00561">
<label>94.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Sabisch</surname>
<given-names>G.</given-names>
</name>
</person-group>
<article-title>Results of pathological-anatomical examination of lung material for bovine influenza</article-title>
<source>Berl. Munch. Tierarztl. Wochenschr.</source>
<year>1977</year>
<volume>90</volume>
<fpage>414</fpage>
<lpage>416</lpage>
<pub-id pub-id-type="pmid">588225</pub-id>
</element-citation>
</ref>
<ref id="B95-viruses-11-00561">
<label>95.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Gunning</surname>
<given-names>R.F.</given-names>
</name>
<name>
<surname>Pritchard</surname>
<given-names>G.C.</given-names>
</name>
</person-group>
<article-title>Unexplained sporadic milk drop in dairy cows</article-title>
<source>Vet. Rec.</source>
<year>1997</year>
<volume>140</volume>
<fpage>488</fpage>
<pub-id pub-id-type="pmid">9160537</pub-id>
</element-citation>
</ref>
<ref id="B96-viruses-11-00561">
<label>96.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Brown</surname>
<given-names>I.H.</given-names>
</name>
<name>
<surname>Crawshaw</surname>
<given-names>T.R.</given-names>
</name>
<name>
<surname>Harris</surname>
<given-names>P.A.</given-names>
</name>
<name>
<surname>Alexander</surname>
<given-names>D.J.</given-names>
</name>
</person-group>
<article-title>Detection of antibodies to influenza A virus in cattle in association with respiratory disease and reduced milk yield</article-title>
<source>Vet. Rec.</source>
<year>1998</year>
<volume>143</volume>
<fpage>637</fpage>
<lpage>638</lpage>
<pub-id pub-id-type="pmid">9881443</pub-id>
</element-citation>
</ref>
<ref id="B97-viruses-11-00561">
<label>97.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Crawshaw</surname>
<given-names>T.R.</given-names>
</name>
<name>
<surname>Brown</surname>
<given-names>I.</given-names>
</name>
</person-group>
<article-title>Bovine influenza</article-title>
<source>Vet. Rec.</source>
<year>1998</year>
<volume>143</volume>
<fpage>372</fpage>
<pub-id pub-id-type="pmid">9800309</pub-id>
</element-citation>
</ref>
<ref id="B98-viruses-11-00561">
<label>98.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Gunning</surname>
<given-names>R.F.</given-names>
</name>
<name>
<surname>Brown</surname>
<given-names>I.H.</given-names>
</name>
<name>
<surname>Crawshaw</surname>
<given-names>T.R.</given-names>
</name>
</person-group>
<article-title>Evidence of influenza A virus infection in dairy cows with sporadic milk drop syndrome</article-title>
<source>Vet. Rec.</source>
<year>1999</year>
<volume>145</volume>
<fpage>556</fpage>
<lpage>557</lpage>
<pub-id pub-id-type="doi">10.1136/vr.145.19.556</pub-id>
<pub-id pub-id-type="pmid">10609575</pub-id>
</element-citation>
</ref>
<ref id="B99-viruses-11-00561">
<label>99.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Graham</surname>
<given-names>D.A.</given-names>
</name>
<name>
<surname>Calvert</surname>
<given-names>V.</given-names>
</name>
<name>
<surname>McLaren</surname>
<given-names>E.</given-names>
</name>
</person-group>
<article-title>Retrospective analysis of serum and nasal mucus from cattle in Northern Ireland for evidence of infection with influenza A virus</article-title>
<source>Vet. Rec.</source>
<year>2002</year>
<volume>150</volume>
<fpage>201</fpage>
<lpage>204</lpage>
<pub-id pub-id-type="doi">10.1136/vr.150.7.201</pub-id>
<pub-id pub-id-type="pmid">11878437</pub-id>
</element-citation>
</ref>
<ref id="B100-viruses-11-00561">
<label>100.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Crawshaw</surname>
<given-names>T.R.</given-names>
</name>
<name>
<surname>Brown</surname>
<given-names>I.H.</given-names>
</name>
<name>
<surname>Essen</surname>
<given-names>S.C.</given-names>
</name>
<name>
<surname>Young</surname>
<given-names>S.C.</given-names>
</name>
</person-group>
<article-title>Significant rising antibody titres to influenza A are associated with an acute reduction in milk yield in cattle</article-title>
<source>Vet. J.</source>
<year>2008</year>
<volume>178</volume>
<fpage>98</fpage>
<lpage>102</lpage>
<pub-id pub-id-type="doi">10.1016/j.tvjl.2007.07.022</pub-id>
<pub-id pub-id-type="pmid">17851097</pub-id>
</element-citation>
</ref>
<ref id="B101-viruses-11-00561">
<label>101.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Szeredi</surname>
<given-names>L.</given-names>
</name>
<name>
<surname>Janosi</surname>
<given-names>S.</given-names>
</name>
<name>
<surname>Palfi</surname>
<given-names>V.</given-names>
</name>
</person-group>
<article-title>Microbiol.ogical and pathological examination of fatal calf pneumonia cases induced by bacterial and viral respiratory pathogens</article-title>
<source>Acta Vet. Hung.</source>
<year>2010</year>
<volume>58</volume>
<fpage>341</fpage>
<lpage>356</lpage>
<pub-id pub-id-type="doi">10.1556/AVet.58.2010.3.7</pub-id>
<pub-id pub-id-type="pmid">20713325</pub-id>
</element-citation>
</ref>
<ref id="B102-viruses-11-00561">
<label>102.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Simpson</surname>
<given-names>V.R.</given-names>
</name>
</person-group>
<article-title>Wild animals as reservoirs of infectious diseases in the UK</article-title>
<source>Vet. J.</source>
<year>2002</year>
<volume>163</volume>
<fpage>128</fpage>
<lpage>146</lpage>
<pub-id pub-id-type="doi">10.1053/tvjl.2001.0662</pub-id>
<pub-id pub-id-type="pmid">12093188</pub-id>
</element-citation>
</ref>
<ref id="B103-viruses-11-00561">
<label>103.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Graves</surname>
<given-names>I.L.</given-names>
</name>
<name>
<surname>Pyakural</surname>
<given-names>S.</given-names>
</name>
<name>
<surname>Sousa</surname>
<given-names>V.O.</given-names>
</name>
</person-group>
<article-title>Susceptibility of a yak to influenza A viruses and presence of H3N2 antibodies in animals in Nepal and India</article-title>
<source>Bull. World Health Organ.</source>
<year>1974</year>
<volume>51</volume>
<fpage>173</fpage>
<lpage>177</lpage>
<pub-id pub-id-type="pmid">4549482</pub-id>
</element-citation>
</ref>
<ref id="B104-viruses-11-00561">
<label>104.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Boyle</surname>
<given-names>D.B.</given-names>
</name>
<name>
<surname>Coupar</surname>
<given-names>B.E.</given-names>
</name>
<name>
<surname>Parsonson</surname>
<given-names>I.M.</given-names>
</name>
<name>
<surname>Bagust</surname>
<given-names>T.J.</given-names>
</name>
<name>
<surname>Both</surname>
<given-names>G.W.</given-names>
</name>
</person-group>
<article-title>Responses of cattle, sheep and poultry to a recombinant vaccinia virus expressing a swine influenza haemagglutinin</article-title>
<source>Res. Vet. Sci.</source>
<year>1986</year>
<volume>41</volume>
<fpage>40</fpage>
<lpage>44</lpage>
<pub-id pub-id-type="doi">10.1016/S0034-5288(18)30569-1</pub-id>
<pub-id pub-id-type="pmid">3764100</pub-id>
</element-citation>
</ref>
<ref id="B105-viruses-11-00561">
<label>105.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Lopez</surname>
<given-names>J.W.</given-names>
</name>
<name>
<surname>Woods</surname>
<given-names>G.T.</given-names>
</name>
</person-group>
<article-title>Response of calves to exposure with swine influenza virus</article-title>
<source>Am. J. Vet. Res.</source>
<year>1987</year>
<volume>48</volume>
<fpage>1264</fpage>
<lpage>1268</lpage>
<pub-id pub-id-type="pmid">2820279</pub-id>
</element-citation>
</ref>
<ref id="B106-viruses-11-00561">
<label>106.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Kalthoff</surname>
<given-names>D.</given-names>
</name>
<name>
<surname>Hoffmann</surname>
<given-names>B.</given-names>
</name>
<name>
<surname>Harder</surname>
<given-names>T.</given-names>
</name>
<name>
<surname>Durban</surname>
<given-names>M.</given-names>
</name>
<name>
<surname>Beer</surname>
<given-names>M.</given-names>
</name>
</person-group>
<article-title>Experimental infection of cattle with highly pathogenic avian influenza virus (H5N1)</article-title>
<source>Emerg. Infect. Dis.</source>
<year>2008</year>
<volume>14</volume>
<fpage>1132</fpage>
<lpage>1134</lpage>
<pub-id pub-id-type="doi">10.3201/eid1407.071468</pub-id>
<pub-id pub-id-type="pmid">18598640</pub-id>
</element-citation>
</ref>
<ref id="B107-viruses-11-00561">
<label>107.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Phuong do</surname>
<given-names>Q.</given-names>
</name>
<name>
<surname>Dung</surname>
<given-names>N.T.</given-names>
</name>
<name>
<surname>Jorgensen</surname>
<given-names>P.H.</given-names>
</name>
<name>
<surname>Van</surname>
<given-names>D.T.</given-names>
</name>
<name>
<surname>Tung</surname>
<given-names>D.D.</given-names>
</name>
<name>
<surname>Christensen</surname>
<given-names>J.P.</given-names>
</name>
</person-group>
<article-title>Virulence of H5N1 influenza virus in Cattle Egrets (Bubulcus ibis)</article-title>
<source>J. Wildl. Dis.</source>
<year>2011</year>
<volume>47</volume>
<fpage>314</fpage>
<lpage>320</lpage>
<pub-id pub-id-type="doi">10.7589/0090-3558-47.2.314</pub-id>
<pub-id pub-id-type="pmid">21441184</pub-id>
</element-citation>
</ref>
<ref id="B108-viruses-11-00561">
<label>108.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Francis</surname>
<given-names>M.E.</given-names>
</name>
<name>
<surname>King</surname>
<given-names>M.L.</given-names>
</name>
<name>
<surname>Kelvin</surname>
<given-names>A.A.</given-names>
</name>
</person-group>
<article-title>Back to the future for influenza preimmunity-looking back at influenza virus History to infer the outcome of future infections</article-title>
<source>Viruses</source>
<year>2019</year>
<volume>11</volume>
<elocation-id>122</elocation-id>
<pub-id pub-id-type="doi">10.3390/v11020122</pub-id>
</element-citation>
</ref>
<ref id="B109-viruses-11-00561">
<label>109.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Kilbourne</surname>
<given-names>E.D.</given-names>
</name>
</person-group>
<article-title>Influenza pandemics of the 20th century</article-title>
<source>Emerg. Infect. Dis.</source>
<year>2006</year>
<volume>12</volume>
<fpage>9</fpage>
<lpage>14</lpage>
<pub-id pub-id-type="doi">10.3201/eid1201.051254</pub-id>
<pub-id pub-id-type="pmid">16494710</pub-id>
</element-citation>
</ref>
<ref id="B110-viruses-11-00561">
<label>110.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Nakamura</surname>
<given-names>R.M.</given-names>
</name>
<name>
<surname>Easterday</surname>
<given-names>B.C.</given-names>
</name>
</person-group>
<article-title>Serological studies of influenza in animals</article-title>
<source>Bull. World Health Organ.</source>
<year>1967</year>
<volume>37</volume>
<fpage>559</fpage>
<lpage>567</lpage>
<pub-id pub-id-type="pmid">5301737</pub-id>
</element-citation>
</ref>
<ref id="B111-viruses-11-00561">
<label>111.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Onta</surname>
<given-names>T.</given-names>
</name>
<name>
<surname>Kida</surname>
<given-names>H.</given-names>
</name>
<name>
<surname>Kawano</surname>
<given-names>J.</given-names>
</name>
<name>
<surname>Matsuoka</surname>
<given-names>Y.</given-names>
</name>
<name>
<surname>Yanagawa</surname>
<given-names>R.</given-names>
</name>
</person-group>
<article-title>Dis.tribution of antibodies against various influenza A viruses in animals</article-title>
<source>Nihon Juigaku Zasshi</source>
<year>1978</year>
<volume>40</volume>
<fpage>451</fpage>
<lpage>454</lpage>
<pub-id pub-id-type="doi">10.1292/jvms1939.40.451</pub-id>
<pub-id pub-id-type="pmid">703031</pub-id>
</element-citation>
</ref>
<ref id="B112-viruses-11-00561">
<label>112.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Saunders-Hastings</surname>
<given-names>P.R.</given-names>
</name>
<name>
<surname>Krewski</surname>
<given-names>D.</given-names>
</name>
</person-group>
<article-title>Reviewing the history of pandemic influenza: Understanding patterns of emergence and transmission</article-title>
<source>Pathogens</source>
<year>2016</year>
<volume>5</volume>
<elocation-id>66</elocation-id>
<pub-id pub-id-type="doi">10.3390/pathogens5040066</pub-id>
<pub-id pub-id-type="pmid">27929449</pub-id>
</element-citation>
</ref>
<ref id="B113-viruses-11-00561">
<label>113.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Smith</surname>
<given-names>G.J.</given-names>
</name>
<name>
<surname>Bahl</surname>
<given-names>J.</given-names>
</name>
<name>
<surname>Vijaykrishna</surname>
<given-names>D.</given-names>
</name>
<name>
<surname>Zhang</surname>
<given-names>J.</given-names>
</name>
<name>
<surname>Poon</surname>
<given-names>L.L.</given-names>
</name>
<name>
<surname>Chen</surname>
<given-names>H.</given-names>
</name>
<name>
<surname>Webster</surname>
<given-names>R.G.</given-names>
</name>
<name>
<surname>Peiris</surname>
<given-names>J.S.</given-names>
</name>
<name>
<surname>Guan</surname>
<given-names>Y.</given-names>
</name>
</person-group>
<article-title>Dating the emergence of pandemic influenza viruses</article-title>
<source>Proc. Natl. Acad. Sci. USA</source>
<year>2009</year>
<volume>106</volume>
<fpage>11709</fpage>
<lpage>11712</lpage>
<pub-id pub-id-type="doi">10.1073/pnas.0904991106</pub-id>
<pub-id pub-id-type="pmid">19597152</pub-id>
</element-citation>
</ref>
<ref id="B114-viruses-11-00561">
<label>114.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Jones-Lang</surname>
<given-names>K.</given-names>
</name>
<name>
<surname>Ernst-Larson</surname>
<given-names>M.</given-names>
</name>
<name>
<surname>Lee</surname>
<given-names>B.</given-names>
</name>
<name>
<surname>Goyal</surname>
<given-names>S.M.</given-names>
</name>
<name>
<surname>Bey</surname>
<given-names>R.</given-names>
</name>
</person-group>
<article-title>Prevalence of influenza A virus (H1N1) antibodies in bovine sera</article-title>
<source>New Microbiol.</source>
<year>1998</year>
<volume>21</volume>
<fpage>153</fpage>
<lpage>160</lpage>
<pub-id pub-id-type="pmid">9579340</pub-id>
</element-citation>
</ref>
<ref id="B115-viruses-11-00561">
<label>115.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Mitchell</surname>
<given-names>C.A.</given-names>
</name>
<name>
<surname>Walker</surname>
<given-names>R.V.</given-names>
</name>
<name>
<surname>Bannister</surname>
<given-names>G.L.</given-names>
</name>
</person-group>
<article-title>Studies relating to the formation of neutralizing antibody following the propagation of influenza and Newcastle disease virus in the bovine mammary gland</article-title>
<source>Can. J. Microbiol.</source>
<year>1956</year>
<volume>2</volume>
<fpage>322</fpage>
<lpage>328</lpage>
<pub-id pub-id-type="doi">10.1139/m56-037</pub-id>
<pub-id pub-id-type="pmid">13316626</pub-id>
</element-citation>
</ref>
<ref id="B116-viruses-11-00561">
<label>116.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Moustafa</surname>
<given-names>M.E.-S.</given-names>
</name>
<name>
<surname>Basem</surname>
<given-names>M.A.</given-names>
</name>
<name>
<surname>Ahmed</surname>
<given-names>A.E.-S.</given-names>
</name>
<name>
<surname>Youssef</surname>
<given-names>I.Y.</given-names>
</name>
</person-group>
<article-title>Isolation of H5 highly pathogenic avian influenza virus from cattle Egret (Bubulcus ibis) near affected broiler chicken flocks in Egypt</article-title>
<source>J. Virol. Sci.</source>
<year>2017</year>
<volume>2</volume>
<fpage>62</fpage>
</element-citation>
</ref>
<ref id="B117-viruses-11-00561">
<label>117.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Lin</surname>
<given-names>C.</given-names>
</name>
<name>
<surname>Holland</surname>
<given-names>R.E.</given-names>
<suffix>Jr.</suffix>
</name>
<name>
<surname>McCoy</surname>
<given-names>M.H.</given-names>
</name>
<name>
<surname>Donofrio-Newman</surname>
<given-names>J.</given-names>
</name>
<name>
<surname>Vickers</surname>
<given-names>M.L.</given-names>
</name>
<name>
<surname>Chambers</surname>
<given-names>T.M.</given-names>
</name>
</person-group>
<article-title>Infectivity of equine H3N8 influenza virus in bovine cells and calves</article-title>
<source>Influenza Other Respir. Viruses</source>
<year>2010</year>
<volume>4</volume>
<fpage>357</fpage>
<lpage>361</lpage>
<pub-id pub-id-type="doi">10.1111/j.1750-2659.2010.00162.x</pub-id>
<pub-id pub-id-type="pmid">20976994</pub-id>
</element-citation>
</ref>
<ref id="B118-viruses-11-00561">
<label>118.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Bronitki</surname>
<given-names>A.</given-names>
</name>
<name>
<surname>Demetrescu</surname>
<given-names>R.</given-names>
</name>
<name>
<surname>Malian</surname>
<given-names>A.</given-names>
</name>
</person-group>
<article-title>Incidence of anti-influenzal and anti-adenoviral antibodies in domestic and wild animals</article-title>
<source>Stud. Cercet. Inframicrobiol.</source>
<year>1965</year>
<volume>16</volume>
<fpage>217</fpage>
<lpage>220</lpage>
<pub-id pub-id-type="pmid">4284011</pub-id>
</element-citation>
</ref>
<ref id="B119-viruses-11-00561">
<label>119.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Fyson</surname>
<given-names>R.E.</given-names>
</name>
<name>
<surname>Westwood</surname>
<given-names>J.C.</given-names>
</name>
<name>
<surname>Brunner</surname>
<given-names>A.H.</given-names>
</name>
</person-group>
<article-title>An immunoprecipitin study of the incidence of influenza A antibodies in animal sera in the Ottawa area</article-title>
<source>Can. J. Microbiol.</source>
<year>1975</year>
<volume>21</volume>
<fpage>1089</fpage>
<lpage>1101</lpage>
<pub-id pub-id-type="doi">10.1139/m75-159</pub-id>
<pub-id pub-id-type="pmid">167931</pub-id>
</element-citation>
</ref>
<ref id="B120-viruses-11-00561">
<label>120.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Chapman</surname>
<given-names>M.S.</given-names>
</name>
<name>
<surname>Lamont</surname>
<given-names>P.H.</given-names>
</name>
<name>
<surname>Harkness</surname>
<given-names>J.W.</given-names>
</name>
</person-group>
<article-title>Serological evidence of continuing infection of swine in Great Britain with an influenza A virus (H3N2)</article-title>
<source>J. Hyg.</source>
<year>1978</year>
<volume>80</volume>
<fpage>415</fpage>
<lpage>422</lpage>
<pub-id pub-id-type="doi">10.1017/S0022172400024876</pub-id>
<pub-id pub-id-type="pmid">349075</pub-id>
</element-citation>
</ref>
<ref id="B121-viruses-11-00561">
<label>121.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Adair</surname>
<given-names>B.M.</given-names>
</name>
<name>
<surname>McFerran</surname>
<given-names>J.B.</given-names>
</name>
<name>
<surname>McKillop</surname>
<given-names>E.R.</given-names>
</name>
<name>
<surname>McCullough</surname>
<given-names>S.J.</given-names>
</name>
</person-group>
<article-title>Survey for antibodies to respiratory viruses in two groups of sheep in Northern Ireland</article-title>
<source>Vet. Rec.</source>
<year>1984</year>
<volume>115</volume>
<fpage>403</fpage>
<lpage>406</lpage>
<pub-id pub-id-type="doi">10.1136/vr.115.16.403</pub-id>
<pub-id pub-id-type="pmid">6095511</pub-id>
</element-citation>
</ref>
<ref id="B122-viruses-11-00561">
<label>122.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Lopez</surname>
<given-names>J.W.</given-names>
</name>
<name>
<surname>Woods</surname>
<given-names>G.T.</given-names>
</name>
</person-group>
<article-title>Epidemiological study of swine influenza virus as a component of the respiratory disease complex of feeder calves</article-title>
<source>Res. Commun. Chem. Pathol. Pharmacol.</source>
<year>1986</year>
<volume>51</volume>
<fpage>417</fpage>
<lpage>420</lpage>
<pub-id pub-id-type="pmid">3517990</pub-id>
</element-citation>
</ref>
<ref id="B123-viruses-11-00561">
<label>123.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Lopez</surname>
<given-names>J.W.</given-names>
</name>
</person-group>
<article-title>A single radial hemolysis technique for the measurement of influenza virus antibody in cattle serum</article-title>
<source>Res. Commun. Chem. Pathol. Pharmacol.</source>
<year>1986</year>
<volume>51</volume>
<fpage>273</fpage>
<lpage>276</lpage>
<pub-id pub-id-type="pmid">3008275</pub-id>
</element-citation>
</ref>
<ref id="B124-viruses-11-00561">
<label>124.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>El-Sayed</surname>
<given-names>A.</given-names>
</name>
<name>
<surname>Prince</surname>
<given-names>A.</given-names>
</name>
<name>
<surname>Fawzy</surname>
<given-names>A.</given-names>
</name>
<name>
<surname>Nadra</surname>
<given-names>E.</given-names>
</name>
<name>
<surname>Abdou</surname>
<given-names>M.I.</given-names>
</name>
<name>
<surname>Omar</surname>
<given-names>L.</given-names>
</name>
<name>
<surname>Fayed</surname>
<given-names>A.</given-names>
</name>
<name>
<surname>Salem</surname>
<given-names>M.</given-names>
</name>
</person-group>
<article-title>Sero-prevalence of avian influenza in animals and human in Egypt</article-title>
<source>Pak. J. Biol. Sci.</source>
<year>2013</year>
<volume>16</volume>
<fpage>524</fpage>
<lpage>529</lpage>
<pub-id pub-id-type="doi">10.3923/pjbs.2013.524.529</pub-id>
<pub-id pub-id-type="pmid">24498821</pub-id>
</element-citation>
</ref>
<ref id="B125-viruses-11-00561">
<label>125.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Samina</surname>
<given-names>I.</given-names>
</name>
<name>
<surname>Zakay-Rones</surname>
<given-names>Z.</given-names>
</name>
<name>
<surname>Peleg</surname>
<given-names>B.A.</given-names>
</name>
</person-group>
<article-title>Homologous and heterologous antibody response of cattle and sheep after vaccination with foot and mouth disease and influenza viruses</article-title>
<source>Vaccine</source>
<year>1998</year>
<volume>16</volume>
<fpage>551</fpage>
<lpage>557</lpage>
<pub-id pub-id-type="doi">10.1016/S0264-410X(97)00243-0</pub-id>
<pub-id pub-id-type="pmid">9569464</pub-id>
</element-citation>
</ref>
<ref id="B126-viruses-11-00561">
<label>126.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Knight</surname>
<given-names>C.A.</given-names>
</name>
</person-group>
<article-title>The nucleic acid and carbohydrate of influenza virus</article-title>
<source>J. Exp. Med.</source>
<year>1947</year>
<volume>85</volume>
<fpage>99</fpage>
<lpage>116</lpage>
<pub-id pub-id-type="doi">10.1084/jem.85.1.99</pub-id>
<pub-id pub-id-type="pmid">19871603</pub-id>
</element-citation>
</ref>
<ref id="B127-viruses-11-00561">
<label>127.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Ada</surname>
<given-names>G.L.</given-names>
</name>
<name>
<surname>Perry</surname>
<given-names>B.T.</given-names>
</name>
</person-group>
<article-title>Infectivity and nucleic acid content of influenza virus</article-title>
<source>Nature</source>
<year>1955</year>
<volume>175</volume>
<fpage>209</fpage>
<lpage>210</lpage>
<pub-id pub-id-type="doi">10.1038/175209a0</pub-id>
<pub-id pub-id-type="pmid">13235848</pub-id>
</element-citation>
</ref>
<ref id="B128-viruses-11-00561">
<label>128.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Rafelson</surname>
<given-names>M.E.</given-names>
<suffix>Jr.</suffix>
</name>
</person-group>
<article-title>Studies on the metabolism of virus-infected tissues. III. The effect of influenza virus on ribonucleic acid fractions of chick chorio-allantoic membranes</article-title>
<source>Arch. Biochem. Biophys.</source>
<year>1960</year>
<volume>90</volume>
<fpage>68</fpage>
<lpage>72</lpage>
<pub-id pub-id-type="doi">10.1016/0003-9861(60)90613-5</pub-id>
<pub-id pub-id-type="pmid">13739071</pub-id>
</element-citation>
</ref>
<ref id="B129-viruses-11-00561">
<label>129.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Davies</surname>
<given-names>P.</given-names>
</name>
<name>
<surname>Barry</surname>
<given-names>R.D.</given-names>
</name>
</person-group>
<article-title>Nucleic acid of influenza virus</article-title>
<source>Nature</source>
<year>1966</year>
<volume>211</volume>
<fpage>384</fpage>
<lpage>387</lpage>
<pub-id pub-id-type="doi">10.1038/211384a0</pub-id>
<pub-id pub-id-type="pmid">4290916</pub-id>
</element-citation>
</ref>
<ref id="B130-viruses-11-00561">
<label>130.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Deusberg</surname>
<given-names>P.H.</given-names>
</name>
<name>
<surname>Robinson</surname>
<given-names>W.S.</given-names>
</name>
</person-group>
<article-title>On the structure and replication of influenza virus</article-title>
<source>J. Mol. Biol.</source>
<year>1967</year>
<volume>25</volume>
<fpage>383</fpage>
<lpage>405</lpage>
<pub-id pub-id-type="doi">10.1016/0022-2836(67)90193-3</pub-id>
<pub-id pub-id-type="pmid">6068145</pub-id>
</element-citation>
</ref>
<ref id="B131-viruses-11-00561">
<label>131.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Pons</surname>
<given-names>M.W.</given-names>
</name>
</person-group>
<article-title>Studies on influenza virus ribonucleic acid</article-title>
<source>Virology</source>
<year>1967</year>
<volume>31</volume>
<fpage>523</fpage>
<lpage>531</lpage>
<pub-id pub-id-type="doi">10.1016/0042-6822(67)90234-6</pub-id>
<pub-id pub-id-type="pmid">6022494</pub-id>
</element-citation>
</ref>
<ref id="B132-viruses-11-00561">
<label>132.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Duesberg</surname>
<given-names>P.H.</given-names>
</name>
</person-group>
<article-title>The RNA of influenza virus</article-title>
<source>Proc. Natl. Acad. Sci. USA</source>
<year>1968</year>
<volume>59</volume>
<fpage>930</fpage>
<lpage>937</lpage>
<pub-id pub-id-type="doi">10.1073/pnas.59.3.930</pub-id>
<pub-id pub-id-type="pmid">5238674</pub-id>
</element-citation>
</ref>
<ref id="B133-viruses-11-00561">
<label>133.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Compans</surname>
<given-names>R.W.</given-names>
</name>
<name>
<surname>Dimmock</surname>
<given-names>N.J.</given-names>
</name>
</person-group>
<article-title>An electron microscopic study of single-cycle infection of chick embryo fibroblasts by influenza virus</article-title>
<source>Virology</source>
<year>1969</year>
<volume>39</volume>
<fpage>499</fpage>
<lpage>515</lpage>
<pub-id pub-id-type="doi">10.1016/0042-6822(69)90098-1</pub-id>
<pub-id pub-id-type="pmid">4187931</pub-id>
</element-citation>
</ref>
<ref id="B134-viruses-11-00561">
<label>134.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Duesberg</surname>
<given-names>P.H.</given-names>
</name>
</person-group>
<article-title>Distinct subunits of the ribonucleoprotein of influenza virus</article-title>
<source>J. Mol. Biol.</source>
<year>1969</year>
<volume>42</volume>
<fpage>485</fpage>
<lpage>499</lpage>
<pub-id pub-id-type="doi">10.1016/0022-2836(69)90237-X</pub-id>
<pub-id pub-id-type="pmid">5804156</pub-id>
</element-citation>
</ref>
<ref id="B135-viruses-11-00561">
<label>135.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Nayak</surname>
<given-names>D.P.</given-names>
</name>
</person-group>
<article-title>Influenza virus: Structure, replication and defectiveness</article-title>
<source>Fed. Proc.</source>
<year>1969</year>
<volume>28</volume>
<fpage>1858</fpage>
<lpage>1866</lpage>
<pub-id pub-id-type="pmid">5353628</pub-id>
</element-citation>
</ref>
<ref id="B136-viruses-11-00561">
<label>136.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Skehel</surname>
<given-names>J.J.</given-names>
</name>
<name>
<surname>Burke</surname>
<given-names>D.C.</given-names>
</name>
</person-group>
<article-title>Ribonucleic acid synthesis in chick embryo cells infected with fowl-plague virus</article-title>
<source>J. Virol.</source>
<year>1969</year>
<volume>3</volume>
<fpage>429</fpage>
<lpage>438</lpage>
<pub-id pub-id-type="doi">10.1042/bj1100041Pb</pub-id>
<pub-id pub-id-type="pmid">4977166</pub-id>
</element-citation>
</ref>
<ref id="B137-viruses-11-00561">
<label>137.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Bishop</surname>
<given-names>D.H.</given-names>
</name>
<name>
<surname>Obijeski</surname>
<given-names>J.F.</given-names>
</name>
<name>
<surname>Simpson</surname>
<given-names>R.W.</given-names>
</name>
</person-group>
<article-title>Transcription of the influenza ribonucleic acid genome by a virion polymerase. II. Nature of the in vitro polymerase product</article-title>
<source>J. Virol.</source>
<year>1971</year>
<volume>8</volume>
<fpage>74</fpage>
<lpage>80</lpage>
<pub-id pub-id-type="pmid">5106347</pub-id>
</element-citation>
</ref>
<ref id="B138-viruses-11-00561">
<label>138.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Bishop</surname>
<given-names>D.H.</given-names>
</name>
<name>
<surname>Obijeski</surname>
<given-names>J.F.</given-names>
</name>
<name>
<surname>Simpson</surname>
<given-names>R.W.</given-names>
</name>
</person-group>
<article-title>Transcription of the influenza ribonucleic acid genome by a virion polymerase. I. Optimal conditions for in vitro activity of the ribonucleic acid-dependent ribonucleic acid polymerase</article-title>
<source>J. Virol.</source>
<year>1971</year>
<volume>8</volume>
<fpage>66</fpage>
<lpage>73</lpage>
<pub-id pub-id-type="pmid">4328417</pub-id>
</element-citation>
</ref>
<ref id="B139-viruses-11-00561">
<label>139.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Penhoet</surname>
<given-names>E.</given-names>
</name>
<name>
<surname>Miller</surname>
<given-names>H.</given-names>
</name>
<name>
<surname>Doyle</surname>
<given-names>M.</given-names>
</name>
<name>
<surname>Blatti</surname>
<given-names>S.</given-names>
</name>
</person-group>
<article-title>RNA-dependent RNA polymerase activity in influenza virions</article-title>
<source>Proc. Natl. Acad. Sci. USA</source>
<year>1971</year>
<volume>68</volume>
<fpage>1369</fpage>
<lpage>1371</lpage>
<pub-id pub-id-type="doi">10.1073/pnas.68.6.1369</pub-id>
<pub-id pub-id-type="pmid">5288388</pub-id>
</element-citation>
</ref>
<ref id="B140-viruses-11-00561">
<label>140.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Skehel</surname>
<given-names>J.J.</given-names>
</name>
</person-group>
<article-title>RNA-dependent RNA polymerase activity of the influenza virus</article-title>
<source>Virology</source>
<year>1971</year>
<volume>45</volume>
<fpage>793</fpage>
<lpage>796</lpage>
<pub-id pub-id-type="doi">10.1016/0042-6822(71)90197-8</pub-id>
<pub-id pub-id-type="pmid">5125571</pub-id>
</element-citation>
</ref>
<ref id="B141-viruses-11-00561">
<label>141.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Schwarz</surname>
<given-names>R.</given-names>
</name>
</person-group>
<article-title>Purification and function of RNA dependent RNA polymerase of an influenza virus</article-title>
<source>Hoppe Seylers Z Physiol. Chem.</source>
<year>1972</year>
<volume>353</volume>
<fpage>1569</fpage>
</element-citation>
</ref>
<ref id="B142-viruses-11-00561">
<label>142.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Hastie</surname>
<given-names>N.D.</given-names>
</name>
<name>
<surname>Mahy</surname>
<given-names>B.W.</given-names>
</name>
</person-group>
<article-title>RNA-dependent RNA polymerase in nuclei of cells infected with influenza virus</article-title>
<source>J. Virol.</source>
<year>1973</year>
<volume>12</volume>
<fpage>951</fpage>
<lpage>961</lpage>
<pub-id pub-id-type="pmid">4358167</pub-id>
</element-citation>
</ref>
<ref id="B143-viruses-11-00561">
<label>143.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Hirst</surname>
<given-names>G.K.</given-names>
</name>
</person-group>
<article-title>Genetic recombination with Newcastle disease virus, polioviruses, and influenza</article-title>
<source>Cold Spring Harb. Symp. Quant. Biol.</source>
<year>1962</year>
<volume>27</volume>
<fpage>303</fpage>
<lpage>309</lpage>
<pub-id pub-id-type="doi">10.1101/SQB.1962.027.001.028</pub-id>
<pub-id pub-id-type="pmid">13954778</pub-id>
</element-citation>
</ref>
<ref id="B144-viruses-11-00561">
<label>144.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Choppin</surname>
<given-names>P.W.</given-names>
</name>
</person-group>
<article-title>Replication of influenza virus in a continuous cell line: High yield of infective virus from cells inoculated at high multiplicity</article-title>
<source>Virology</source>
<year>1969</year>
<volume>39</volume>
<fpage>130</fpage>
<lpage>134</lpage>
<pub-id pub-id-type="doi">10.1016/0042-6822(69)90354-7</pub-id>
<pub-id pub-id-type="pmid">4980034</pub-id>
</element-citation>
</ref>
<ref id="B145-viruses-11-00561">
<label>145.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Choppin</surname>
<given-names>P.W.</given-names>
</name>
<name>
<surname>Pons</surname>
<given-names>M.W.</given-names>
</name>
</person-group>
<article-title>The RNAs of infective and incomplete influenza virions grown in MDBK and HeLa cells</article-title>
<source>Virology</source>
<year>1970</year>
<volume>42</volume>
<fpage>603</fpage>
<lpage>610</lpage>
<pub-id pub-id-type="doi">10.1016/0042-6822(70)90306-5</pub-id>
<pub-id pub-id-type="pmid">5529979</pub-id>
</element-citation>
</ref>
<ref id="B146-viruses-11-00561">
<label>146.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Leiderman</surname>
<given-names>E.</given-names>
</name>
<name>
<surname>Mogabgab</surname>
<given-names>W.J.</given-names>
</name>
</person-group>
<article-title>Antigenicity of influenza vaccine from bovine cell cultures</article-title>
<source>Appl. Microbiol.</source>
<year>1969</year>
<volume>18</volume>
<fpage>596</fpage>
<lpage>600</lpage>
<pub-id pub-id-type="pmid">4905036</pub-id>
</element-citation>
</ref>
<ref id="B147-viruses-11-00561">
<label>147.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Niven</surname>
<given-names>J.S.</given-names>
</name>
<name>
<surname>Armstrong</surname>
<given-names>J.A.</given-names>
</name>
<name>
<surname>Balfour</surname>
<given-names>B.M.</given-names>
</name>
<name>
<surname>Klemperer</surname>
<given-names>H.G.</given-names>
</name>
<name>
<surname>Tyrrell</surname>
<given-names>D.A.</given-names>
</name>
</person-group>
<article-title>Cellular changes accompanying the growth of influenza virus in bovine cell cultures</article-title>
<source>J. Pathol. Bacteriol.</source>
<year>1962</year>
<volume>84</volume>
<fpage>1</fpage>
<lpage>18</lpage>
<pub-id pub-id-type="doi">10.1002/path.1700840102</pub-id>
<pub-id pub-id-type="pmid">14480088</pub-id>
</element-citation>
</ref>
<ref id="B148-viruses-11-00561">
<label>148.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Ramos</surname>
<given-names>B.A.</given-names>
</name>
<name>
<surname>De Torres</surname>
<given-names>R.A.</given-names>
</name>
</person-group>
<article-title>B influenza virus proliferation in bovine etal kidney cell cultures, formation of incomplete virus</article-title>
<source>Rev. Latinoam. Microbiol.</source>
<year>1970</year>
<volume>12</volume>
<fpage>123</fpage>
<lpage>130</lpage>
<pub-id pub-id-type="pmid">5280935</pub-id>
</element-citation>
</ref>
<ref id="B149-viruses-11-00561">
<label>149.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Enami</surname>
<given-names>M.</given-names>
</name>
<name>
<surname>Fukuda</surname>
<given-names>R.</given-names>
</name>
<name>
<surname>Ishihama</surname>
<given-names>A.</given-names>
</name>
</person-group>
<article-title>Transcription and replication of eight RNA segments of influenza virus</article-title>
<source>Virology</source>
<year>1985</year>
<volume>142</volume>
<fpage>68</fpage>
<lpage>77</lpage>
<pub-id pub-id-type="doi">10.1016/0042-6822(85)90423-4</pub-id>
<pub-id pub-id-type="pmid">2997982</pub-id>
</element-citation>
</ref>
<ref id="B150-viruses-11-00561">
<label>150.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Compans</surname>
<given-names>R.W.</given-names>
</name>
<name>
<surname>Content</surname>
<given-names>J.</given-names>
</name>
<name>
<surname>Duesberg</surname>
<given-names>P.H.</given-names>
</name>
</person-group>
<article-title>Structure of the ribonucleoprotein of influenza virus</article-title>
<source>J. Virol.</source>
<year>1972</year>
<volume>10</volume>
<fpage>795</fpage>
<lpage>800</lpage>
<pub-id pub-id-type="pmid">4117350</pub-id>
</element-citation>
</ref>
<ref id="B151-viruses-11-00561">
<label>151.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Compans</surname>
<given-names>R.W.</given-names>
</name>
<name>
<surname>Klenk</surname>
<given-names>H.D.</given-names>
</name>
<name>
<surname>Caliguiri</surname>
<given-names>L.A.</given-names>
</name>
<name>
<surname>Choppin</surname>
<given-names>P.W.</given-names>
</name>
</person-group>
<article-title>Influenza virus proteins. I. Analysis of polypeptides of the virion and identification of spike glycoproteins</article-title>
<source>Virology</source>
<year>1970</year>
<volume>42</volume>
<fpage>880</fpage>
<lpage>889</lpage>
<pub-id pub-id-type="doi">10.1016/0042-6822(70)90337-5</pub-id>
<pub-id pub-id-type="pmid">4099085</pub-id>
</element-citation>
</ref>
<ref id="B152-viruses-11-00561">
<label>152.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Compans</surname>
<given-names>R.W.</given-names>
</name>
<name>
<surname>Caliguiri</surname>
<given-names>L.A.</given-names>
</name>
</person-group>
<article-title>Isolation and properties of an RNA polymerase from influenza virus-infected cells</article-title>
<source>J. Virol.</source>
<year>1973</year>
<volume>11</volume>
<fpage>441</fpage>
<lpage>448</lpage>
<pub-id pub-id-type="pmid">4120639</pub-id>
</element-citation>
</ref>
<ref id="B153-viruses-11-00561">
<label>153.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Content</surname>
<given-names>J.</given-names>
</name>
<name>
<surname>Duesberg</surname>
<given-names>P.H.</given-names>
</name>
</person-group>
<article-title>Base sequence differences among the ribonucleic acids of influenza virus</article-title>
<source>J. Mol. Biol.</source>
<year>1971</year>
<volume>62</volume>
<fpage>273</fpage>
<lpage>285</lpage>
<pub-id pub-id-type="doi">10.1016/0022-2836(71)90427-X</pub-id>
<pub-id pub-id-type="pmid">5167704</pub-id>
</element-citation>
</ref>
<ref id="B154-viruses-11-00561">
<label>154.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Lazarowitz</surname>
<given-names>S.G.</given-names>
</name>
<name>
<surname>Compans</surname>
<given-names>R.W.</given-names>
</name>
<name>
<surname>Choppin</surname>
<given-names>P.W.</given-names>
</name>
</person-group>
<article-title>Influenza virus structural and nonstructural proteins in infected cells and their plasma membranes</article-title>
<source>Virology</source>
<year>1971</year>
<volume>46</volume>
<fpage>830</fpage>
<lpage>843</lpage>
<pub-id pub-id-type="doi">10.1016/0042-6822(71)90084-5</pub-id>
<pub-id pub-id-type="pmid">5167660</pub-id>
</element-citation>
</ref>
<ref id="B155-viruses-11-00561">
<label>155.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Schulman</surname>
<given-names>J.L.</given-names>
</name>
<name>
<surname>Palese</surname>
<given-names>P.</given-names>
</name>
</person-group>
<article-title>Virulence factors of influenza A viruses: WSN virus neuraminidase required for plaque production in MDBK cells</article-title>
<source>J. Virol.</source>
<year>1977</year>
<volume>24</volume>
<fpage>170</fpage>
<lpage>176</lpage>
<pub-id pub-id-type="pmid">561860</pub-id>
</element-citation>
</ref>
<ref id="B156-viruses-11-00561">
<label>156.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Beare</surname>
<given-names>A.S.</given-names>
</name>
<name>
<surname>Keast</surname>
<given-names>K.</given-names>
</name>
</person-group>
<article-title>Plaque formation by influenza B viruses in primary calf kidney cell monolayes</article-title>
<source>J. Gen. Virol.</source>
<year>1971</year>
<volume>13</volume>
<fpage>321</fpage>
<lpage>325</lpage>
<pub-id pub-id-type="doi">10.1099/0022-1317-13-2-321</pub-id>
<pub-id pub-id-type="pmid">5168242</pub-id>
</element-citation>
</ref>
<ref id="B157-viruses-11-00561">
<label>157.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Lisok</surname>
<given-names>T.P.</given-names>
</name>
<name>
<surname>Sominina</surname>
<given-names>A.A.</given-names>
</name>
</person-group>
<article-title>Improved methods of influenza virus propagation. I. Enhancement of virus reproduction in cell cultures</article-title>
<source>Acta Virol.</source>
<year>1977</year>
<volume>21</volume>
<fpage>234</fpage>
<lpage>240</lpage>
<pub-id pub-id-type="pmid">18922</pub-id>
</element-citation>
</ref>
<ref id="B158-viruses-11-00561">
<label>158.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Sominina</surname>
<given-names>A.A.</given-names>
</name>
<name>
<surname>Lisok</surname>
<given-names>T.P.</given-names>
</name>
<name>
<surname>Rumel</surname>
<given-names>N.B.</given-names>
</name>
</person-group>
<article-title>Improved methods of influenza virus propagation. II. Characteristics of cell culture and allantoic virus preparations</article-title>
<source>Acta Virol.</source>
<year>1977</year>
<volume>21</volume>
<fpage>241</fpage>
<lpage>245</lpage>
<pub-id pub-id-type="pmid">18923</pub-id>
</element-citation>
</ref>
<ref id="B159-viruses-11-00561">
<label>159.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Gavrilov</surname>
<given-names>V.I.</given-names>
</name>
<name>
<surname>Asher</surname>
<given-names>D.M.</given-names>
</name>
<name>
<surname>Vyalushkina</surname>
<given-names>S.D.</given-names>
</name>
<name>
<surname>Ratushkina</surname>
<given-names>L.S.</given-names>
</name>
<name>
<surname>Zmieva</surname>
<given-names>R.G.</given-names>
</name>
<name>
<surname>Tumyan</surname>
<given-names>B.G.</given-names>
</name>
</person-group>
<article-title>Persistent infection of continuous line of pig kidney cells with a variant of the WSN strain of influenza A 0 virus</article-title>
<source>Proc. Soc. Exp. Biol. Med.</source>
<year>1972</year>
<volume>140</volume>
<fpage>109</fpage>
<lpage>117</lpage>
<pub-id pub-id-type="doi">10.3181/00379727-140-36405</pub-id>
<pub-id pub-id-type="pmid">5033080</pub-id>
</element-citation>
</ref>
<ref id="B160-viruses-11-00561">
<label>160.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Krug</surname>
<given-names>R.M.</given-names>
</name>
</person-group>
<article-title>Cytoplasmic and nucleoplasmic viral RNPs in influenza virus-infected MDCK cells</article-title>
<source>Virology</source>
<year>1972</year>
<volume>50</volume>
<fpage>103</fpage>
<lpage>113</lpage>
<pub-id pub-id-type="doi">10.1016/0042-6822(72)90350-9</pub-id>
<pub-id pub-id-type="pmid">4673271</pub-id>
</element-citation>
</ref>
<ref id="B161-viruses-11-00561">
<label>161.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Krug</surname>
<given-names>R.M.</given-names>
</name>
<name>
<surname>Etkind</surname>
<given-names>P.R.</given-names>
</name>
</person-group>
<article-title>Cytoplasmic and nuclear virus-specific proteins in influenza virus-infected MDCK cells</article-title>
<source>Virology</source>
<year>1973</year>
<volume>56</volume>
<fpage>334</fpage>
<lpage>348</lpage>
<pub-id pub-id-type="doi">10.1016/0042-6822(73)90310-3</pub-id>
<pub-id pub-id-type="pmid">4795673</pub-id>
</element-citation>
</ref>
<ref id="B162-viruses-11-00561">
<label>162.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Urabe</surname>
<given-names>M.</given-names>
</name>
<name>
<surname>Tanaka</surname>
<given-names>T.</given-names>
</name>
<name>
<surname>Tobita</surname>
<given-names>K.</given-names>
</name>
</person-group>
<article-title>MDBK cells which survived infection with a mutant of influenza virus A/WSN and subsequently received many passages contained viral M and NS genes in full length in the absence of virus production</article-title>
<source>Arch. Virol.</source>
<year>1993</year>
<volume>130</volume>
<fpage>457</fpage>
<lpage>462</lpage>
<pub-id pub-id-type="doi">10.1007/BF01309673</pub-id>
<pub-id pub-id-type="pmid">8517796</pub-id>
</element-citation>
</ref>
<ref id="B163-viruses-11-00561">
<label>163.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>De</surname>
<given-names>B.K.</given-names>
</name>
<name>
<surname>Nayak</surname>
<given-names>D.P.</given-names>
</name>
</person-group>
<article-title>Defective interfering influenza viruses and host cells: Establishment and maintenance of persistent influenza virus infection in MDBK and HeLa cells</article-title>
<source>J. Virol.</source>
<year>1980</year>
<volume>36</volume>
<fpage>847</fpage>
<lpage>859</lpage>
<pub-id pub-id-type="pmid">7463559</pub-id>
</element-citation>
</ref>
<ref id="B164-viruses-11-00561">
<label>164.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Nayak</surname>
<given-names>D.P.</given-names>
</name>
</person-group>
<article-title>Defective interfering influenza viruses</article-title>
<source>Annu. Rev. Microbiol.</source>
<year>1980</year>
<volume>34</volume>
<fpage>619</fpage>
<lpage>644</lpage>
<pub-id pub-id-type="doi">10.1146/annurev.mi.34.100180.003155</pub-id>
<pub-id pub-id-type="pmid">7002033</pub-id>
</element-citation>
</ref>
<ref id="B165-viruses-11-00561">
<label>165.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Von Magnus</surname>
<given-names>P.</given-names>
</name>
</person-group>
<article-title>Incomplete forms of influenza virus</article-title>
<source>Adv. Virus Res.</source>
<year>1954</year>
<volume>2</volume>
<fpage>59</fpage>
<lpage>79</lpage>
<pub-id pub-id-type="pmid">13228257</pub-id>
</element-citation>
</ref>
<ref id="B166-viruses-11-00561">
<label>166.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Lazarowitz</surname>
<given-names>S.G.</given-names>
</name>
<name>
<surname>Compans</surname>
<given-names>R.W.</given-names>
</name>
<name>
<surname>Choppin</surname>
<given-names>P.W.</given-names>
</name>
</person-group>
<article-title>Proteolytic cleavage of the hemagglutinin polypeptide of influenza virus. Function of the uncleaved polypeptide HA</article-title>
<source>Virology</source>
<year>1973</year>
<volume>52</volume>
<fpage>199</fpage>
<lpage>212</lpage>
<pub-id pub-id-type="doi">10.1016/0042-6822(73)90409-1</pub-id>
<pub-id pub-id-type="pmid">4139805</pub-id>
</element-citation>
</ref>
<ref id="B167-viruses-11-00561">
<label>167.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Lazarowitz</surname>
<given-names>S.G.</given-names>
</name>
<name>
<surname>Goldberg</surname>
<given-names>A.R.</given-names>
</name>
<name>
<surname>Choppin</surname>
<given-names>P.W.</given-names>
</name>
</person-group>
<article-title>Proteolytic cleavage by plasmin of the HA polypeptide of influenza virus: Host cell activation of serum plasminogen</article-title>
<source>Virology</source>
<year>1973</year>
<volume>56</volume>
<fpage>172</fpage>
<lpage>180</lpage>
<pub-id pub-id-type="doi">10.1016/0042-6822(73)90296-1</pub-id>
<pub-id pub-id-type="pmid">4795670</pub-id>
</element-citation>
</ref>
<ref id="B168-viruses-11-00561">
<label>168.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Beare</surname>
<given-names>A.S.</given-names>
</name>
<name>
<surname>Keast</surname>
<given-names>K.A.</given-names>
</name>
</person-group>
<article-title>Influenza virus plaque formation in different species of cell monolayers</article-title>
<source>J. Gen. Virol.</source>
<year>1974</year>
<volume>22</volume>
<fpage>347</fpage>
<lpage>354</lpage>
<pub-id pub-id-type="doi">10.1099/0022-1317-22-3-347</pub-id>
<pub-id pub-id-type="pmid">4818275</pub-id>
</element-citation>
</ref>
<ref id="B169-viruses-11-00561">
<label>169.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Crecelius</surname>
<given-names>D.M.</given-names>
</name>
<name>
<surname>Deom</surname>
<given-names>C.M.</given-names>
</name>
<name>
<surname>Schulze</surname>
<given-names>I.T.</given-names>
</name>
</person-group>
<article-title>Biological properties of a hemagglutinin mutant of influenza virus selected by host cells</article-title>
<source>Virology</source>
<year>1984</year>
<volume>139</volume>
<fpage>164</fpage>
<lpage>177</lpage>
<pub-id pub-id-type="doi">10.1016/0042-6822(84)90337-4</pub-id>
<pub-id pub-id-type="pmid">6495654</pub-id>
</element-citation>
</ref>
<ref id="B170-viruses-11-00561">
<label>170.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Deom</surname>
<given-names>C.M.</given-names>
</name>
<name>
<surname>Schulze</surname>
<given-names>I.T.</given-names>
</name>
</person-group>
<article-title>Oligosaccharide composition of an influenza virus hemagglutinin with host-determined binding properties</article-title>
<source>J. Biol. Chem.</source>
<year>1985</year>
<volume>260</volume>
<fpage>14771</fpage>
<lpage>14774</lpage>
<pub-id pub-id-type="pmid">4055800</pub-id>
</element-citation>
</ref>
<ref id="B171-viruses-11-00561">
<label>171.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Mir-Shekari</surname>
<given-names>S.Y.</given-names>
</name>
<name>
<surname>Ashford</surname>
<given-names>D.A.</given-names>
</name>
<name>
<surname>Harvey</surname>
<given-names>D.J.</given-names>
</name>
<name>
<surname>Dwek</surname>
<given-names>R.A.</given-names>
</name>
<name>
<surname>Schulze</surname>
<given-names>I.T.</given-names>
</name>
</person-group>
<article-title>The glycosylation of the influenza A virus hemagglutinin by mammalian cells. A site-specific study</article-title>
<source>J. Biol. Chem.</source>
<year>1997</year>
<volume>272</volume>
<fpage>4027</fpage>
<lpage>4036</lpage>
<pub-id pub-id-type="doi">10.1074/jbc.272.7.4027</pub-id>
<pub-id pub-id-type="pmid">9020110</pub-id>
</element-citation>
</ref>
<ref id="B172-viruses-11-00561">
<label>172.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Schulze</surname>
<given-names>I.T.</given-names>
</name>
</person-group>
<article-title>Effects of glycosylation on the properties and functions of influenza virus hemagglutinin</article-title>
<source>J. Infect. Dis.</source>
<year>1997</year>
<volume>176</volume>
<issue>Suppl. 1</issue>
<fpage>S24</fpage>
<lpage>S28</lpage>
<pub-id pub-id-type="doi">10.1086/514170</pub-id>
<pub-id pub-id-type="pmid">9240690</pub-id>
</element-citation>
</ref>
<ref id="B173-viruses-11-00561">
<label>173.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Murphy</surname>
<given-names>B.R.</given-names>
</name>
<name>
<surname>Chalhub</surname>
<given-names>E.G.</given-names>
</name>
<name>
<surname>Nusinoff</surname>
<given-names>S.R.</given-names>
</name>
<name>
<surname>Chanock</surname>
<given-names>R.M.</given-names>
</name>
</person-group>
<article-title>Temperature-sensitive mutants of influenza virus. II. Attenuation of ts recombinants for man</article-title>
<source>J. Infect. Dis.</source>
<year>1972</year>
<volume>126</volume>
<fpage>170</fpage>
<lpage>178</lpage>
<pub-id pub-id-type="doi">10.1093/infdis/126.2.170</pub-id>
<pub-id pub-id-type="pmid">4626544</pub-id>
</element-citation>
</ref>
<ref id="B174-viruses-11-00561">
<label>174.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Kitayama</surname>
<given-names>T.</given-names>
</name>
<name>
<surname>Togo</surname>
<given-names>Y.</given-names>
</name>
<name>
<surname>Hornick</surname>
<given-names>R.B.</given-names>
</name>
<name>
<surname>Friedwald</surname>
<given-names>W.T.</given-names>
</name>
</person-group>
<article-title>Low-temperature-adapted influenza A2/AA/6/60 virus vaccine in man</article-title>
<source>Infect. Immun.</source>
<year>1973</year>
<volume>7</volume>
<fpage>119</fpage>
<lpage>122</lpage>
<pub-id pub-id-type="pmid">16558072</pub-id>
</element-citation>
</ref>
<ref id="B175-viruses-11-00561">
<label>175.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Sugiura</surname>
<given-names>A.</given-names>
</name>
<name>
<surname>Tobita</surname>
<given-names>K.</given-names>
</name>
<name>
<surname>Kilbourne</surname>
<given-names>E.D.</given-names>
</name>
</person-group>
<article-title>Isolation and preliminary characterization of temperature-sensitive mutants of influenza virus</article-title>
<source>J. Virol.</source>
<year>1972</year>
<volume>10</volume>
<fpage>639</fpage>
<lpage>647</lpage>
<pub-id pub-id-type="pmid">4673486</pub-id>
</element-citation>
</ref>
<ref id="B176-viruses-11-00561">
<label>176.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Sokolova</surname>
<given-names>N.N.</given-names>
</name>
<name>
<surname>Irzhanov</surname>
<given-names>S.D.</given-names>
</name>
</person-group>
<article-title>Use of organ cultures of animal trachea and lung for studying respiratory viruses</article-title>
<source>Vopr. Virusol.</source>
<year>1976</year>
<volume>2</volume>
<fpage>220</fpage>
<lpage>222</lpage>
</element-citation>
</ref>
<ref id="B177-viruses-11-00561">
<label>177.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Reed</surname>
<given-names>S.E.</given-names>
</name>
</person-group>
<article-title>The interaction of mycoplasmas and influenza viruses in tracheal organ cultures</article-title>
<source>J. Infect. Dis.</source>
<year>1971</year>
<volume>124</volume>
<fpage>18</fpage>
<lpage>25</lpage>
<pub-id pub-id-type="doi">10.1093/infdis/124.1.18</pub-id>
<pub-id pub-id-type="pmid">5143840</pub-id>
</element-citation>
</ref>
<ref id="B178-viruses-11-00561">
<label>178.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Gorev</surname>
<given-names>N.E.</given-names>
</name>
</person-group>
<article-title>The effect of species and organ-specific features of tissue systems on the reactogenic and immunogenic properties of influenza virus</article-title>
<source>Acta Virol.</source>
<year>1975</year>
<volume>19</volume>
<fpage>41</fpage>
<lpage>46</lpage>
<pub-id pub-id-type="pmid">235196</pub-id>
</element-citation>
</ref>
<ref id="B179-viruses-11-00561">
<label>179.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Schaffer</surname>
<given-names>F.L.</given-names>
</name>
<name>
<surname>Soergel</surname>
<given-names>M.E.</given-names>
</name>
<name>
<surname>Straube</surname>
<given-names>D.C.</given-names>
</name>
</person-group>
<article-title>Survival of airborne influenza virus: Effects of propagating host, relative humidity, and composition of spray fluids</article-title>
<source>Arch. Virol.</source>
<year>1976</year>
<volume>51</volume>
<fpage>263</fpage>
<lpage>273</lpage>
<pub-id pub-id-type="doi">10.1007/BF01317930</pub-id>
<pub-id pub-id-type="pmid">987765</pub-id>
</element-citation>
</ref>
<ref id="B180-viruses-11-00561">
<label>180.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Sreenivasan</surname>
<given-names>C.C.</given-names>
</name>
<name>
<surname>Jandhyala</surname>
<given-names>S.S.</given-names>
</name>
<name>
<surname>Luo</surname>
<given-names>S.</given-names>
</name>
<name>
<surname>Hause</surname>
<given-names>B.M.</given-names>
</name>
<name>
<surname>Thomas</surname>
<given-names>M.</given-names>
</name>
<name>
<surname>Knudsen</surname>
<given-names>D.E.B.</given-names>
</name>
<name>
<surname>Leslie-Steen</surname>
<given-names>P.</given-names>
</name>
<name>
<surname>Clement</surname>
<given-names>T.</given-names>
</name>
<name>
<surname>Reedy</surname>
<given-names>S.E.</given-names>
</name>
<name>
<surname>Chambers</surname>
<given-names>T.M.</given-names>
</name>
<etal></etal>
</person-group>
<article-title>Phylogenetic analysis and characterization of a sporadic isolate of equine influenza A H3N8 from an unvaccinated horse in 2015</article-title>
<source>Viruses</source>
<year>2018</year>
<volume>10</volume>
<elocation-id>31</elocation-id>
<pub-id pub-id-type="doi">10.3390/v10010031</pub-id>
</element-citation>
</ref>
<ref id="B181-viruses-11-00561">
<label>181.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Gagov</surname>
<given-names>I.</given-names>
</name>
<name>
<surname>Pancheva-Golovinska</surname>
<given-names>S.</given-names>
</name>
</person-group>
<article-title>Studies on acitivity of some cellular enzymes and their connection with cytopathogenic effect at cultivation of the influenza virus in tissue cultures</article-title>
<source>Izv. Mikrobiol. Inst. (Sofiia)</source>
<year>1967</year>
<volume>19</volume>
<fpage>235</fpage>
<lpage>239</lpage>
<pub-id pub-id-type="pmid">5601510</pub-id>
</element-citation>
</ref>
<ref id="B182-viruses-11-00561">
<label>182.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Gagov</surname>
<given-names>I.</given-names>
</name>
</person-group>
<article-title>Experiments in the adaptation of 2 strains of the influenza virus in a model monolayer cell culture of calf kidney</article-title>
<source>Izv. Mikrobiol. Inst. (Sofiia)</source>
<year>1969</year>
<volume>20</volume>
<fpage>191</fpage>
<lpage>201</lpage>
<pub-id pub-id-type="pmid">5398237</pub-id>
</element-citation>
</ref>
<ref id="B183-viruses-11-00561">
<label>183.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>De Sousa</surname>
<given-names>C.P.</given-names>
</name>
<name>
<surname>Belyavin</surname>
<given-names>G.</given-names>
</name>
</person-group>
<article-title>Some aspects of plaque formation by human influenza viruses. I. Cell and media factors affecting a modified plaque technique</article-title>
<source>Arch. Gesamte Virusforsch.</source>
<year>1970</year>
<volume>32</volume>
<fpage>125</fpage>
<lpage>136</lpage>
<pub-id pub-id-type="doi">10.1007/BF01249948</pub-id>
<pub-id pub-id-type="pmid">4993572</pub-id>
</element-citation>
</ref>
<ref id="B184-viruses-11-00561">
<label>184.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Gagov</surname>
<given-names>I.</given-names>
</name>
<name>
<surname>Manolova</surname>
<given-names>N.</given-names>
</name>
</person-group>
<article-title>Adaptation to influenza virus A2 (Hong Kong) 68 in calf kidney cell cultures</article-title>
<source>Izv. Mikrobiol. Inst. (Sofiia)</source>
<year>1972</year>
<volume>23</volume>
<fpage>123</fpage>
<lpage>128</lpage>
<pub-id pub-id-type="pmid">4663869</pub-id>
</element-citation>
</ref>
<ref id="B185-viruses-11-00561">
<label>185.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Lenard</surname>
<given-names>J.</given-names>
</name>
<name>
<surname>Compans</surname>
<given-names>R.W.</given-names>
</name>
</person-group>
<article-title>Polypeptide composition of incomplete influenza virus grown in MDBK cells</article-title>
<source>Virology</source>
<year>1975</year>
<volume>65</volume>
<fpage>418</fpage>
<lpage>426</lpage>
<pub-id pub-id-type="doi">10.1016/0042-6822(75)90047-1</pub-id>
<pub-id pub-id-type="pmid">1168971</pub-id>
</element-citation>
</ref>
<ref id="B186-viruses-11-00561">
<label>186.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Lee</surname>
<given-names>Y.S.</given-names>
</name>
<name>
<surname>Seong</surname>
<given-names>B.L.</given-names>
</name>
</person-group>
<article-title>Nucleotides in the panhandle structure of the influenza B virus virion RNA are involved in the specificity between influenza A and B viruses</article-title>
<source>J. Gen. Virol.</source>
<year>1998</year>
<volume>79</volume>
<fpage>673</fpage>
<lpage>681</lpage>
<pub-id pub-id-type="doi">10.1099/0022-1317-79-4-673</pub-id>
<pub-id pub-id-type="pmid">9568960</pub-id>
</element-citation>
</ref>
<ref id="B187-viruses-11-00561">
<label>187.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Lenard</surname>
<given-names>J.</given-names>
</name>
<name>
<surname>Tsai</surname>
<given-names>D.K.</given-names>
</name>
<name>
<surname>Compans</surname>
<given-names>R.W.</given-names>
</name>
<name>
<surname>Landsberger</surname>
<given-names>F.R.</given-names>
</name>
</person-group>
<article-title>Observations on the membrane organization of standard and incomplete influenza grown in MDBK cells</article-title>
<source>Virology</source>
<year>1976</year>
<volume>71</volume>
<fpage>389</fpage>
<lpage>394</lpage>
<pub-id pub-id-type="doi">10.1016/0042-6822(76)90366-4</pub-id>
<pub-id pub-id-type="pmid">180658</pub-id>
</element-citation>
</ref>
<ref id="B188-viruses-11-00561">
<label>188.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Ransohoff</surname>
<given-names>R.M.</given-names>
</name>
<name>
<surname>Maroney</surname>
<given-names>P.A.</given-names>
</name>
<name>
<surname>Nayak</surname>
<given-names>D.P.</given-names>
</name>
<name>
<surname>Chambers</surname>
<given-names>T.M.</given-names>
</name>
<name>
<surname>Nilsen</surname>
<given-names>T.W.</given-names>
</name>
</person-group>
<article-title>Effect of human alpha A interferon on influenza virus replication in MDBK cells</article-title>
<source>J. Virol.</source>
<year>1985</year>
<volume>56</volume>
<fpage>1049</fpage>
<lpage>1052</lpage>
<pub-id pub-id-type="pmid">4068143</pub-id>
</element-citation>
</ref>
<ref id="B189-viruses-11-00561">
<label>189.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Lanni</surname>
<given-names>F.</given-names>
</name>
<name>
<surname>Lanni</surname>
<given-names>Y.T.</given-names>
</name>
<name>
<surname>Beard</surname>
<given-names>J.W.</given-names>
</name>
</person-group>
<article-title>Inhibitory effect of cow’s milk on influenza virus hemagglutination</article-title>
<source>Proc. Soc. Exp. Biol. Med.</source>
<year>1949</year>
<volume>72</volume>
<fpage>227</fpage>
<lpage>232</lpage>
<pub-id pub-id-type="doi">10.3181/00379727-72-17389</pub-id>
<pub-id pub-id-type="pmid">15391723</pub-id>
</element-citation>
</ref>
<ref id="B190-viruses-11-00561">
<label>190.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Perdijk</surname>
<given-names>O.</given-names>
</name>
<name>
<surname>Van Splunter</surname>
<given-names>M.</given-names>
</name>
<name>
<surname>Savelkoul</surname>
<given-names>H.F.J.</given-names>
</name>
<name>
<surname>Brugman</surname>
<given-names>S.</given-names>
</name>
<name>
<surname>Van Neerven</surname>
<given-names>R.J.J.</given-names>
</name>
</person-group>
<article-title>Cow’s milk and immune function in the respiratory tract: Potential mechanisms</article-title>
<source>Front. Immunol.</source>
<year>2018</year>
<volume>9</volume>
<fpage>143</fpage>
<pub-id pub-id-type="doi">10.3389/fimmu.2018.00143</pub-id>
<pub-id pub-id-type="pmid">29483908</pub-id>
</element-citation>
</ref>
<ref id="B191-viruses-11-00561">
<label>191.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Alisky</surname>
<given-names>J.</given-names>
</name>
</person-group>
<article-title>Bovine and human-derived passive immunization could help slow a future avian influenza pandemic</article-title>
<source>Med. Hypotheses</source>
<year>2009</year>
<volume>72</volume>
<fpage>74</fpage>
<lpage>75</lpage>
<pub-id pub-id-type="doi">10.1016/j.mehy.2008.08.016</pub-id>
<pub-id pub-id-type="pmid">18824305</pub-id>
</element-citation>
</ref>
<ref id="B192-viruses-11-00561">
<label>192.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Curtain</surname>
<given-names>C.C.</given-names>
</name>
<name>
<surname>Pye</surname>
<given-names>J.</given-names>
</name>
</person-group>
<article-title>A mucoprotein from bovine submaxillary glands with restricted inhibitory action against influenza virus haemagglutination</article-title>
<source>Aust. J. Exp. Biol. Med. Sci.</source>
<year>1955</year>
<volume>33</volume>
<fpage>315</fpage>
<lpage>322</lpage>
<pub-id pub-id-type="doi">10.1038/icb.1955.32</pub-id>
<pub-id pub-id-type="pmid">13260073</pub-id>
</element-citation>
</ref>
<ref id="B193-viruses-11-00561">
<label>193.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Lycke</surname>
<given-names>E.</given-names>
</name>
</person-group>
<article-title>A factor in bovine amniotic fluid inhibiting influenza virus hemagglutination</article-title>
<source>Arch. Gesamte Virusforsch.</source>
<year>1954</year>
<volume>5</volume>
<fpage>425</fpage>
<lpage>431</lpage>
<pub-id pub-id-type="doi">10.1007/BF01241092</pub-id>
<pub-id pub-id-type="pmid">13218594</pub-id>
</element-citation>
</ref>
<ref id="B194-viruses-11-00561">
<label>194.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Ng</surname>
<given-names>W.C.</given-names>
</name>
<name>
<surname>Wong</surname>
<given-names>V.</given-names>
</name>
<name>
<surname>Muller</surname>
<given-names>B.</given-names>
</name>
<name>
<surname>Rawlin</surname>
<given-names>G.</given-names>
</name>
<name>
<surname>Brown</surname>
<given-names>L.E.</given-names>
</name>
</person-group>
<article-title>Prevention and treatment of influenza with hyperimmune bovine colostrum antibody</article-title>
<source>PLoS ONE</source>
<year>2010</year>
<volume>5</volume>
<elocation-id>e13622</elocation-id>
<pub-id pub-id-type="doi">10.1371/journal.pone.0013622</pub-id>
<pub-id pub-id-type="pmid">21049034</pub-id>
</element-citation>
</ref>
<ref id="B195-viruses-11-00561">
<label>195.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Uchida</surname>
<given-names>K.</given-names>
</name>
<name>
<surname>Hiruta</surname>
<given-names>N.</given-names>
</name>
<name>
<surname>Yamaguchi</surname>
<given-names>H.</given-names>
</name>
<name>
<surname>Yamashita</surname>
<given-names>K.</given-names>
</name>
<name>
<surname>Fujimura</surname>
<given-names>K.</given-names>
</name>
<name>
<surname>Yasui</surname>
<given-names>H.</given-names>
</name>
</person-group>
<article-title>Augmentation of cellular immunity and protection against influenza virus infection by bovine late colostrum in mice</article-title>
<source>Nutrition</source>
<year>2012</year>
<volume>28</volume>
<fpage>442</fpage>
<lpage>446</lpage>
<pub-id pub-id-type="doi">10.1016/j.nut.2011.07.021</pub-id>
<pub-id pub-id-type="pmid">22055477</pub-id>
</element-citation>
</ref>
<ref id="B196-viruses-11-00561">
<label>196.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Wong</surname>
<given-names>E.B.</given-names>
</name>
<name>
<surname>Mallet</surname>
<given-names>J.F.</given-names>
</name>
<name>
<surname>Duarte</surname>
<given-names>J.</given-names>
</name>
<name>
<surname>Matar</surname>
<given-names>C.</given-names>
</name>
<name>
<surname>Ritz</surname>
<given-names>B.W.</given-names>
</name>
</person-group>
<article-title>Bovine colostrum enhances natural killer cell activity and immune response in a mouse model of influenza infection and mediates intestinal immunity through toll-like receptors 2 and 4</article-title>
<source>Nutr. Res.</source>
<year>2014</year>
<volume>34</volume>
<fpage>318</fpage>
<lpage>325</lpage>
<pub-id pub-id-type="doi">10.1016/j.nutres.2014.02.007</pub-id>
<pub-id pub-id-type="pmid">24774068</pub-id>
</element-citation>
</ref>
<ref id="B197-viruses-11-00561">
<label>197.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Xu</surname>
<given-names>M.L.</given-names>
</name>
<name>
<surname>Kim</surname>
<given-names>H.J.</given-names>
</name>
<name>
<surname>Chang</surname>
<given-names>D.Y.</given-names>
</name>
<name>
<surname>Kim</surname>
<given-names>H.J.</given-names>
</name>
</person-group>
<article-title>The effect of dietary intake of the acidic protein fraction of bovine colostrum on influenza A (H1N1) virus infection</article-title>
<source>J. Microbiol.</source>
<year>2013</year>
<volume>51</volume>
<fpage>389</fpage>
<lpage>393</lpage>
<pub-id pub-id-type="doi">10.1007/s12275-013-2683-y</pub-id>
<pub-id pub-id-type="pmid">23620352</pub-id>
</element-citation>
</ref>
<ref id="B198-viruses-11-00561">
<label>198.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Benson</surname>
<given-names>K.F.</given-names>
</name>
<name>
<surname>Carter</surname>
<given-names>S.G.</given-names>
</name>
<name>
<surname>Patterson</surname>
<given-names>K.M.</given-names>
</name>
<name>
<surname>Patel</surname>
<given-names>D.</given-names>
</name>
<name>
<surname>Jensen</surname>
<given-names>G.S.</given-names>
</name>
</person-group>
<article-title>A novel extract from bovine colostrum whey supports anti-bacterial and anti-viral innate immune functions in vitro and in vivo: I. Enhanced immune activity in vitro translates to improved microbial clearance in animal infection models</article-title>
<source>Prev. Med.</source>
<year>2012</year>
<volume>54</volume>
<fpage>S116</fpage>
<lpage>S123</lpage>
<pub-id pub-id-type="doi">10.1016/j.ypmed.2011.12.023</pub-id>
<pub-id pub-id-type="pmid">22227281</pub-id>
</element-citation>
</ref>
<ref id="B199-viruses-11-00561">
<label>199.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Ammendolia</surname>
<given-names>M.G.</given-names>
</name>
<name>
<surname>Agamennone</surname>
<given-names>M.</given-names>
</name>
<name>
<surname>Pietrantoni</surname>
<given-names>A.</given-names>
</name>
<name>
<surname>Lannutti</surname>
<given-names>F.</given-names>
</name>
<name>
<surname>Siciliano</surname>
<given-names>R.A.</given-names>
</name>
<name>
<surname>De Giulio</surname>
<given-names>B.</given-names>
</name>
<name>
<surname>Amici</surname>
<given-names>C.</given-names>
</name>
<name>
<surname>Superti</surname>
<given-names>F.</given-names>
</name>
</person-group>
<article-title>Bovine lactoferrin-derived peptides as novel broad-spectrum inhibitors of influenza virus</article-title>
<source>Pathog. Glob. Health</source>
<year>2012</year>
<volume>106</volume>
<fpage>12</fpage>
<lpage>19</lpage>
<pub-id pub-id-type="doi">10.1179/2047773212Y.0000000004</pub-id>
<pub-id pub-id-type="pmid">22595270</pub-id>
</element-citation>
</ref>
<ref id="B200-viruses-11-00561">
<label>200.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Pietrantoni</surname>
<given-names>A.</given-names>
</name>
<name>
<surname>Ammendolia</surname>
<given-names>M.G.</given-names>
</name>
<name>
<surname>Superti</surname>
<given-names>F.</given-names>
</name>
</person-group>
<article-title>Bovine lactoferrin: Involvement of metal saturation and carbohydrates in the inhibition of influenza virus infection</article-title>
<source>Biochem. Cell. Biol.</source>
<year>2012</year>
<volume>90</volume>
<fpage>442</fpage>
<lpage>448</lpage>
<pub-id pub-id-type="doi">10.1139/o11-072</pub-id>
<pub-id pub-id-type="pmid">22332831</pub-id>
</element-citation>
</ref>
<ref id="B201-viruses-11-00561">
<label>201.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Pietrantoni</surname>
<given-names>A.</given-names>
</name>
<name>
<surname>Dofrelli</surname>
<given-names>E.</given-names>
</name>
<name>
<surname>Tinari</surname>
<given-names>A.</given-names>
</name>
<name>
<surname>Ammendolia</surname>
<given-names>M.G.</given-names>
</name>
<name>
<surname>Puzelli</surname>
<given-names>S.</given-names>
</name>
<name>
<surname>Fabiani</surname>
<given-names>C.</given-names>
</name>
<name>
<surname>Donatelli</surname>
<given-names>I.</given-names>
</name>
<name>
<surname>Superti</surname>
<given-names>F.</given-names>
</name>
</person-group>
<article-title>Bovine lactoferrin inhibits influenza A virus induced programmed cell death in vitro</article-title>
<source>Biometals</source>
<year>2010</year>
<volume>23</volume>
<fpage>465</fpage>
<lpage>475</lpage>
<pub-id pub-id-type="doi">10.1007/s10534-010-9323-3</pub-id>
<pub-id pub-id-type="pmid">20232110</pub-id>
</element-citation>
</ref>
<ref id="B202-viruses-11-00561">
<label>202.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Shin</surname>
<given-names>K.</given-names>
</name>
<name>
<surname>Wakabayashi</surname>
<given-names>H.</given-names>
</name>
<name>
<surname>Yamauchi</surname>
<given-names>K.</given-names>
</name>
<name>
<surname>Teraguchi</surname>
<given-names>S.</given-names>
</name>
<name>
<surname>Tamura</surname>
<given-names>Y.</given-names>
</name>
<name>
<surname>Kurokawa</surname>
<given-names>M.</given-names>
</name>
<name>
<surname>Shiraki</surname>
<given-names>K.</given-names>
</name>
</person-group>
<article-title>Effects of orally administered bovine lactoferrin and lactoperoxidase on influenza virus infection in mice</article-title>
<source>J. Med. Microbiol.</source>
<year>2005</year>
<volume>54</volume>
<fpage>717</fpage>
<lpage>723</lpage>
<pub-id pub-id-type="doi">10.1099/jmm.0.46018-0</pub-id>
<pub-id pub-id-type="pmid">16014423</pub-id>
</element-citation>
</ref>
<ref id="B203-viruses-11-00561">
<label>203.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Scala</surname>
<given-names>M.C.</given-names>
</name>
<name>
<surname>Sala</surname>
<given-names>M.</given-names>
</name>
<name>
<surname>Pietrantoni</surname>
<given-names>A.</given-names>
</name>
<name>
<surname>Spensiero</surname>
<given-names>A.</given-names>
</name>
<name>
<surname>Di Micco</surname>
<given-names>S.</given-names>
</name>
<name>
<surname>Agamennone</surname>
<given-names>M.</given-names>
</name>
<name>
<surname>Bertamino</surname>
<given-names>A.</given-names>
</name>
<name>
<surname>Novellino</surname>
<given-names>E.</given-names>
</name>
<name>
<surname>Bifulco</surname>
<given-names>G.</given-names>
</name>
<name>
<surname>Gomez-Monterrey</surname>
<given-names>I.M.</given-names>
</name>
<etal></etal>
</person-group>
<article-title>Lactoferrin-derived peptides active towards influenza: Identification of three potent tetrapeptide inhibitors</article-title>
<source>Sci. Rep.</source>
<year>2017</year>
<volume>7</volume>
<fpage>10593</fpage>
<pub-id pub-id-type="doi">10.1038/s41598-017-10492-x</pub-id>
<pub-id pub-id-type="pmid">28878220</pub-id>
</element-citation>
</ref>
<ref id="B204-viruses-11-00561">
<label>204.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Superti</surname>
<given-names>F.</given-names>
</name>
<name>
<surname>Agamennone</surname>
<given-names>M.</given-names>
</name>
<name>
<surname>Pietrantoni</surname>
<given-names>A.</given-names>
</name>
<name>
<surname>Ammendolia</surname>
<given-names>M.G.</given-names>
</name>
</person-group>
<article-title>Bovine lactoferrin prevents influenza A virus infection by interfering with the fusogenic function of viral hemagglutinin</article-title>
<source>Viruses</source>
<year>2019</year>
<volume>11</volume>
<elocation-id>51</elocation-id>
<pub-id pub-id-type="doi">10.3390/v11010051</pub-id>
</element-citation>
</ref>
<ref id="B205-viruses-11-00561">
<label>205.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Yamauchi</surname>
<given-names>K.</given-names>
</name>
<name>
<surname>Wakabayashi</surname>
<given-names>H.</given-names>
</name>
<name>
<surname>Shin</surname>
<given-names>K.</given-names>
</name>
<name>
<surname>Takase</surname>
<given-names>M.</given-names>
</name>
</person-group>
<article-title>Bovine lactoferrin: Benefits and mechanism of action against infections</article-title>
<source>Biochem. Cell. Biol.</source>
<year>2006</year>
<volume>84</volume>
<fpage>291</fpage>
<lpage>296</lpage>
<pub-id pub-id-type="doi">10.1139/o06-054</pub-id>
<pub-id pub-id-type="pmid">16936799</pub-id>
</element-citation>
</ref>
<ref id="B206-viruses-11-00561">
<label>206.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>de Sousa</surname>
<given-names>C.P.</given-names>
</name>
<name>
<surname>Bal</surname>
<given-names>A.</given-names>
</name>
</person-group>
<article-title>Sensitivity of A2-Hong Kong and pre-1968 A2 influenza virus strains to normal serum inhibitors</article-title>
<source>Acta Virol.</source>
<year>1971</year>
<volume>15</volume>
<fpage>367</fpage>
<lpage>373</lpage>
<pub-id pub-id-type="pmid">4399134</pub-id>
</element-citation>
</ref>
<ref id="B207-viruses-11-00561">
<label>207.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Beardmore</surname>
<given-names>W.B.</given-names>
</name>
<name>
<surname>Jones</surname>
<given-names>K.V.</given-names>
</name>
<name>
<surname>Clark</surname>
<given-names>T.D.</given-names>
</name>
<name>
<surname>Hebeka</surname>
<given-names>E.K.</given-names>
</name>
</person-group>
<article-title>Induction of an inhibitor of influenza virus hemagglutination by treatment of serum with periodate</article-title>
<source>Appl. Microbiol.</source>
<year>1968</year>
<volume>16</volume>
<fpage>563</fpage>
<lpage>568</lpage>
<pub-id pub-id-type="pmid">4296711</pub-id>
</element-citation>
</ref>
<ref id="B208-viruses-11-00561">
<label>208.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Saiatov</surname>
<given-names>M.</given-names>
</name>
<name>
<surname>Shuratov</surname>
<given-names>I.</given-names>
</name>
<name>
<surname>Beisembaeva</surname>
<given-names>R.U.</given-names>
</name>
<name>
<surname>Akhmetova</surname>
<given-names>N.A.</given-names>
</name>
<name>
<surname>Asanova</surname>
<given-names>S.E.</given-names>
</name>
</person-group>
<article-title>Quantitative indices and physico-chemical properties of non-specific inhibitors of influenza A virus hemagglutination in the sera of different species of animals and birds</article-title>
<source>Vopr. Virusol.</source>
<year>1977</year>
<volume>3</volume>
<fpage>299</fpage>
<lpage>304</lpage>
</element-citation>
</ref>
<ref id="B209-viruses-11-00561">
<label>209.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Kawai</surname>
<given-names>T.</given-names>
</name>
<name>
<surname>Kase</surname>
<given-names>T.</given-names>
</name>
<name>
<surname>Suzuki</surname>
<given-names>Y.</given-names>
</name>
<name>
<surname>Eda</surname>
<given-names>S.</given-names>
</name>
<name>
<surname>Sakamoto</surname>
<given-names>T.</given-names>
</name>
<name>
<surname>Ohtani</surname>
<given-names>K.</given-names>
</name>
<name>
<surname>Wakamiya</surname>
<given-names>N.</given-names>
</name>
</person-group>
<article-title>Anti-influenza A virus activities of mannan-binding lectins and bovine conglutinin</article-title>
<source>J. Vet. Med. Sci.</source>
<year>2007</year>
<volume>69</volume>
<fpage>221</fpage>
<lpage>224</lpage>
<pub-id pub-id-type="doi">10.1292/jvms.69.221</pub-id>
<pub-id pub-id-type="pmid">17339771</pub-id>
</element-citation>
</ref>
<ref id="B210-viruses-11-00561">
<label>210.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Anders</surname>
<given-names>E.M.</given-names>
</name>
<name>
<surname>Hartley</surname>
<given-names>C.A.</given-names>
</name>
<name>
<surname>Jackson</surname>
<given-names>D.C.</given-names>
</name>
</person-group>
<article-title>Bovine and mouse serum beta inhibitors of influenza A viruses are mannose-binding lectins</article-title>
<source>Proc. Natl. Acad. Sci. USA</source>
<year>1990</year>
<volume>87</volume>
<fpage>4485</fpage>
<lpage>4489</lpage>
<pub-id pub-id-type="doi">10.1073/pnas.87.12.4485</pub-id>
<pub-id pub-id-type="pmid">2162043</pub-id>
</element-citation>
</ref>
<ref id="B211-viruses-11-00561">
<label>211.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Eda</surname>
<given-names>S.</given-names>
</name>
<name>
<surname>Suzuki</surname>
<given-names>Y.</given-names>
</name>
<name>
<surname>Kase</surname>
<given-names>T.</given-names>
</name>
<name>
<surname>Kawai</surname>
<given-names>T.</given-names>
</name>
<name>
<surname>Ohtani</surname>
<given-names>K.</given-names>
</name>
<name>
<surname>Sakamoto</surname>
<given-names>T.</given-names>
</name>
<name>
<surname>Kurimura</surname>
<given-names>T.</given-names>
</name>
<name>
<surname>Wakamiya</surname>
<given-names>N.</given-names>
</name>
</person-group>
<article-title>Recombinant bovine conglutinin, lacking the N-terminal and collagenous domains, has less conglutination activity but is able to inhibit haemagglutination by influenza A virus</article-title>
<source>Biochem. J.</source>
<year>1996</year>
<volume>316</volume>
<fpage>43</fpage>
<lpage>48</lpage>
<pub-id pub-id-type="doi">10.1042/bj3160043</pub-id>
<pub-id pub-id-type="pmid">8645231</pub-id>
</element-citation>
</ref>
<ref id="B212-viruses-11-00561">
<label>212.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Hartley</surname>
<given-names>C.A.</given-names>
</name>
<name>
<surname>Jackson</surname>
<given-names>D.C.</given-names>
</name>
<name>
<surname>Anders</surname>
<given-names>E.M.</given-names>
</name>
</person-group>
<article-title>Two distinct serum mannose-binding lectins function as beta inhibitors of influenza virus: Identification of bovine serum beta inhibitor as conglutinin</article-title>
<source>J. Virol.</source>
<year>1992</year>
<volume>66</volume>
<fpage>4358</fpage>
<lpage>4363</lpage>
<pub-id pub-id-type="pmid">1602549</pub-id>
</element-citation>
</ref>
<ref id="B213-viruses-11-00561">
<label>213.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Hartshorn</surname>
<given-names>K.L.</given-names>
</name>
<name>
<surname>Sastry</surname>
<given-names>K.</given-names>
</name>
<name>
<surname>Brown</surname>
<given-names>D.</given-names>
</name>
<name>
<surname>White</surname>
<given-names>M.R.</given-names>
</name>
<name>
<surname>Okarma</surname>
<given-names>T.B.</given-names>
</name>
<name>
<surname>Lee</surname>
<given-names>Y.M.</given-names>
</name>
<name>
<surname>Tauber</surname>
<given-names>A.I.</given-names>
</name>
</person-group>
<article-title>Conglutinin acts as an opsonin for influenza A viruses</article-title>
<source>J. Immunol.</source>
<year>1993</year>
<volume>151</volume>
<fpage>6265</fpage>
<lpage>6273</lpage>
<pub-id pub-id-type="pmid">8245465</pub-id>
</element-citation>
</ref>
<ref id="B214-viruses-11-00561">
<label>214.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Wakamiya</surname>
<given-names>N.</given-names>
</name>
<name>
<surname>Okuno</surname>
<given-names>Y.</given-names>
</name>
<name>
<surname>Sasao</surname>
<given-names>F.</given-names>
</name>
<name>
<surname>Ueda</surname>
<given-names>S.</given-names>
</name>
<name>
<surname>Yoshimatsu</surname>
<given-names>K.</given-names>
</name>
<name>
<surname>Naiki</surname>
<given-names>M.</given-names>
</name>
<name>
<surname>Kurimura</surname>
<given-names>T.</given-names>
</name>
</person-group>
<article-title>Isolation and characterization of conglutinin as an influenza A virus inhibitor</article-title>
<source>Biochem. Biophys. Res. Commun.</source>
<year>1992</year>
<volume>187</volume>
<fpage>1270</fpage>
<lpage>1278</lpage>
<pub-id pub-id-type="doi">10.1016/0006-291X(92)90440-V</pub-id>
<pub-id pub-id-type="pmid">1417803</pub-id>
</element-citation>
</ref>
<ref id="B215-viruses-11-00561">
<label>215.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Suzuki</surname>
<given-names>Y.</given-names>
</name>
<name>
<surname>Eda</surname>
<given-names>S.</given-names>
</name>
<name>
<surname>Kawai</surname>
<given-names>T.</given-names>
</name>
<name>
<surname>Ohtani</surname>
<given-names>K.</given-names>
</name>
<name>
<surname>Kase</surname>
<given-names>T.</given-names>
</name>
<name>
<surname>Sakamoto</surname>
<given-names>T.</given-names>
</name>
<name>
<surname>Wakamiya</surname>
<given-names>N.</given-names>
</name>
</person-group>
<article-title>Characterization of recombinant bovine conglutinin expressed in a mammalian cell</article-title>
<source>Biochem. Biophys. Res. Commun.</source>
<year>1997</year>
<volume>238</volume>
<fpage>856</fpage>
<lpage>860</lpage>
<pub-id pub-id-type="doi">10.1006/bbrc.1997.7402</pub-id>
<pub-id pub-id-type="pmid">9325181</pub-id>
</element-citation>
</ref>
<ref id="B216-viruses-11-00561">
<label>216.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Reading</surname>
<given-names>P.C.</given-names>
</name>
<name>
<surname>Holmskov</surname>
<given-names>U.</given-names>
</name>
<name>
<surname>Anders</surname>
<given-names>E.M.</given-names>
</name>
</person-group>
<article-title>Antiviral activity of bovine collectins against rotaviruses</article-title>
<source>J. Gen. Virol.</source>
<year>1998</year>
<volume>79</volume>
<fpage>2255</fpage>
<lpage>2263</lpage>
<pub-id pub-id-type="doi">10.1099/0022-1317-79-9-2255</pub-id>
<pub-id pub-id-type="pmid">9747736</pub-id>
</element-citation>
</ref>
<ref id="B217-viruses-11-00561">
<label>217.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Hartshorn</surname>
<given-names>K.L.</given-names>
</name>
<name>
<surname>White</surname>
<given-names>M.R.</given-names>
</name>
<name>
<surname>Smith</surname>
<given-names>K.</given-names>
</name>
<name>
<surname>Sorensen</surname>
<given-names>G.</given-names>
</name>
<name>
<surname>Kuroki</surname>
<given-names>Y.</given-names>
</name>
<name>
<surname>Holmskov</surname>
<given-names>U.</given-names>
</name>
<name>
<surname>Head</surname>
<given-names>J.</given-names>
</name>
<name>
<surname>Crouch</surname>
<given-names>E.C.</given-names>
</name>
</person-group>
<article-title>Increasing antiviral activity of surfactant protein d trimers by introducing residues from bovine serum collectins: Dissociation of mannan-binding and antiviral activity</article-title>
<source>Scand. J. Immunol.</source>
<year>2010</year>
<volume>72</volume>
<fpage>22</fpage>
<lpage>30</lpage>
<pub-id pub-id-type="doi">10.1111/j.1365-3083.2010.02409.x</pub-id>
<pub-id pub-id-type="pmid">20591072</pub-id>
</element-citation>
</ref>
<ref id="B218-viruses-11-00561">
<label>218.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Dec</surname>
<given-names>M.</given-names>
</name>
<name>
<surname>Wernicki</surname>
<given-names>A.</given-names>
</name>
</person-group>
<article-title>Conglutinin, CL-43 and CL-46--three bovine collectins</article-title>
<source>Pol. J. Vet. Sci.</source>
<year>2006</year>
<volume>9</volume>
<fpage>265</fpage>
<lpage>275</lpage>
<pub-id pub-id-type="pmid">17203746</pub-id>
</element-citation>
</ref>
<ref id="B219-viruses-11-00561">
<label>219.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Zhirnov</surname>
<given-names>O.P.</given-names>
</name>
<name>
<surname>Matrosovich</surname>
<given-names>T.Y.</given-names>
</name>
<name>
<surname>Matrosovich</surname>
<given-names>M.N.</given-names>
</name>
<name>
<surname>Klenk</surname>
<given-names>H.D.</given-names>
</name>
</person-group>
<article-title>Aprotinin, a protease inhibitor, suppresses proteolytic activation of pandemic H1N1v influenza virus</article-title>
<source>Antivir. Chem. Chemother.</source>
<year>2011</year>
<volume>21</volume>
<fpage>169</fpage>
<lpage>174</lpage>
<pub-id pub-id-type="doi">10.3851/IMP1715</pub-id>
<pub-id pub-id-type="pmid">21602614</pub-id>
</element-citation>
</ref>
<ref id="B220-viruses-11-00561">
<label>220.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Zhirnov</surname>
<given-names>O.P.</given-names>
</name>
<name>
<surname>Klenk</surname>
<given-names>H.D.</given-names>
</name>
<name>
<surname>Wright</surname>
<given-names>P.F.</given-names>
</name>
</person-group>
<article-title>Aprotinin and similar protease inhibitors as drugs against influenza</article-title>
<source>Antivir. Res.</source>
<year>2011</year>
<volume>92</volume>
<fpage>27</fpage>
<lpage>36</lpage>
<pub-id pub-id-type="doi">10.1016/j.antiviral.2011.07.014</pub-id>
<pub-id pub-id-type="pmid">21802447</pub-id>
</element-citation>
</ref>
<ref id="B221-viruses-11-00561">
<label>221.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Kimoto</surname>
<given-names>T.</given-names>
</name>
<name>
<surname>Mizuno</surname>
<given-names>D.</given-names>
</name>
<name>
<surname>Takei</surname>
<given-names>T.</given-names>
</name>
<name>
<surname>Kunimi</surname>
<given-names>T.</given-names>
</name>
<name>
<surname>Ono</surname>
<given-names>S.</given-names>
</name>
<name>
<surname>Sakai</surname>
<given-names>S.</given-names>
</name>
<name>
<surname>Kido</surname>
<given-names>H.</given-names>
</name>
</person-group>
<article-title>Intranasal influenza vaccination using a new synthetic mucosal adjuvant SF-10: Induction of potent local and systemic immunity with balanced Th1 and Th2 responses</article-title>
<source>Influenza Other Respir. Viruses</source>
<year>2013</year>
<volume>7</volume>
<fpage>1218</fpage>
<lpage>1226</lpage>
<pub-id pub-id-type="doi">10.1111/irv.12124</pub-id>
<pub-id pub-id-type="pmid">23710832</pub-id>
</element-citation>
</ref>
<ref id="B222-viruses-11-00561">
<label>222.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Glasky</surname>
<given-names>A.J.</given-names>
</name>
<name>
<surname>Simon</surname>
<given-names>L.</given-names>
</name>
<name>
<surname>Holper</surname>
<given-names>J.C.</given-names>
</name>
</person-group>
<article-title>Interferons: Selectivity and specificity of action in cell-free systems</article-title>
<source>Science</source>
<year>1964</year>
<volume>144</volume>
<fpage>1581</fpage>
<lpage>1583</lpage>
<pub-id pub-id-type="doi">10.1126/science.144.3626.1581</pub-id>
<pub-id pub-id-type="pmid">14169346</pub-id>
</element-citation>
</ref>
<ref id="B223-viruses-11-00561">
<label>223.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Horisberger</surname>
<given-names>M.A.</given-names>
</name>
</person-group>
<article-title>The action of recombinant bovine interferons on influenza virus replication correlates with the induction of two Mx-related proteins in bovine cells</article-title>
<source>Virology</source>
<year>1988</year>
<volume>162</volume>
<fpage>181</fpage>
<lpage>186</lpage>
<pub-id pub-id-type="doi">10.1016/0042-6822(88)90407-2</pub-id>
<pub-id pub-id-type="pmid">2827376</pub-id>
</element-citation>
</ref>
<ref id="B224-viruses-11-00561">
<label>224.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Verhelst</surname>
<given-names>J.</given-names>
</name>
<name>
<surname>Hulpiau</surname>
<given-names>P.</given-names>
</name>
<name>
<surname>Saelens</surname>
<given-names>X.</given-names>
</name>
</person-group>
<article-title>Mx proteins: Antiviral gatekeepers that restrain the uninvited</article-title>
<source>Microbiol. Mol. Biol. Rev.</source>
<year>2013</year>
<volume>77</volume>
<fpage>551</fpage>
<lpage>566</lpage>
<pub-id pub-id-type="doi">10.1128/MMBR.00024-13</pub-id>
<pub-id pub-id-type="pmid">24296571</pub-id>
</element-citation>
</ref>
<ref id="B225-viruses-11-00561">
<label>225.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Garigliany</surname>
<given-names>M.M.</given-names>
</name>
<name>
<surname>Cornet</surname>
<given-names>A.</given-names>
</name>
<name>
<surname>Desmecht</surname>
<given-names>D.</given-names>
</name>
</person-group>
<article-title>Human/bovine chimeric MxA-like GTPases reveal a contribution of N-terminal domains to the magnitude of anti-influenza A activity</article-title>
<source>J. Interferon Cytokine Res.</source>
<year>2012</year>
<volume>32</volume>
<fpage>326</fpage>
<lpage>331</lpage>
<pub-id pub-id-type="doi">10.1089/jir.2011.0106</pub-id>
<pub-id pub-id-type="pmid">22686832</pub-id>
</element-citation>
</ref>
<ref id="B226-viruses-11-00561">
<label>226.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Schmidt</surname>
<given-names>E.</given-names>
</name>
</person-group>
<article-title>Influenza virus inhibitor in human milk and cow’s milk. Part 1. Comparative studies on neuraminic acid content and the level of the inhibitor titer in the hemagglutination test</article-title>
<source>Z. Kinderheilkd.</source>
<year>1960</year>
<volume>84</volume>
<fpage>339</fpage>
<lpage>348</lpage>
<pub-id pub-id-type="doi">10.1007/BF00439491</pub-id>
<pub-id pub-id-type="pmid">13747970</pub-id>
</element-citation>
</ref>
<ref id="B227-viruses-11-00561">
<label>227.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Krizanova</surname>
<given-names>O.</given-names>
</name>
<name>
<surname>Rathova</surname>
<given-names>V.</given-names>
</name>
<name>
<surname>Kociskova</surname>
<given-names>D.</given-names>
</name>
<name>
<surname>Szanto</surname>
<given-names>J.</given-names>
</name>
</person-group>
<article-title>Purification and properties of beta inhibitor from bovine serum</article-title>
<source>Bratisl. Lek. Listy</source>
<year>1963</year>
<volume>2</volume>
<fpage>22</fpage>
<lpage>30</lpage>
<pub-id pub-id-type="pmid">14055806</pub-id>
</element-citation>
</ref>
<ref id="B228-viruses-11-00561">
<label>228.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Moisa</surname>
<given-names>I.</given-names>
</name>
</person-group>
<article-title>Sensitivity of hemagglutinins of some influenza viruses to non-specific inhibitors from the serum of various species of animals</article-title>
<source>Stud. Cercet. Virusol.</source>
<year>1972</year>
<volume>23</volume>
<fpage>283</fpage>
<lpage>300</lpage>
<pub-id pub-id-type="pmid">4669950</pub-id>
</element-citation>
</ref>
<ref id="B229-viruses-11-00561">
<label>229.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Shortridge</surname>
<given-names>K.F.</given-names>
</name>
<name>
<surname>Lansdell</surname>
<given-names>A.</given-names>
</name>
</person-group>
<article-title>Serum inhibitors of A 2 -Hong Kong influenza virus haemagglutination</article-title>
<source>Microbios</source>
<year>1972</year>
<volume>6</volume>
<fpage>213</fpage>
<lpage>219</lpage>
<pub-id pub-id-type="pmid">4348986</pub-id>
</element-citation>
</ref>
<ref id="B230-viruses-11-00561">
<label>230.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Osipova</surname>
<given-names>Z.A.</given-names>
</name>
<name>
<surname>Medvedeva</surname>
<given-names>M.N.</given-names>
</name>
</person-group>
<article-title>Effect of cattle serum inhibitors on persistence of influenza virus in MDSK cells</article-title>
<source>Mikrobiol. Zhurnal</source>
<year>1980</year>
<volume>42</volume>
<fpage>390</fpage>
<lpage>391</lpage>
</element-citation>
</ref>
<ref id="B231-viruses-11-00561">
<label>231.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Hartshorn</surname>
<given-names>K.L.</given-names>
</name>
<name>
<surname>Holmskov</surname>
<given-names>U.</given-names>
</name>
<name>
<surname>Hansen</surname>
<given-names>S.</given-names>
</name>
<name>
<surname>Zhang</surname>
<given-names>P.</given-names>
</name>
<name>
<surname>Meschi</surname>
<given-names>J.</given-names>
</name>
<name>
<surname>Mogues</surname>
<given-names>T.</given-names>
</name>
<name>
<surname>White</surname>
<given-names>M.R.</given-names>
</name>
<name>
<surname>Crouch</surname>
<given-names>E.C.</given-names>
</name>
</person-group>
<article-title>Distinctive anti-influenza properties of recombinant collectin 43</article-title>
<source>Biochem. J.</source>
<year>2002</year>
<volume>366</volume>
<fpage>87</fpage>
<lpage>96</lpage>
<pub-id pub-id-type="doi">10.1042/bj20011868</pub-id>
<pub-id pub-id-type="pmid">11971759</pub-id>
</element-citation>
</ref>
<ref id="B232-viruses-11-00561">
<label>232.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Singh</surname>
<given-names>N.</given-names>
</name>
<name>
<surname>Pandey</surname>
<given-names>A.</given-names>
</name>
<name>
<surname>Jayashankar</surname>
<given-names>L.</given-names>
</name>
<name>
<surname>Mittal</surname>
<given-names>S.K.</given-names>
</name>
</person-group>
<article-title>Bovine adenoviral vector-based H5N1 influenza vaccine overcomes exceptionally high levels of pre-existing immunity against human adenovirus</article-title>
<source>Mol. Ther.</source>
<year>2008</year>
<volume>16</volume>
<fpage>965</fpage>
<lpage>971</lpage>
<pub-id pub-id-type="doi">10.1038/mt.2008.12</pub-id>
<pub-id pub-id-type="pmid">18301400</pub-id>
</element-citation>
</ref>
<ref id="B233-viruses-11-00561">
<label>233.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Sayedahmed</surname>
<given-names>E.E.</given-names>
</name>
<name>
<surname>Hassan</surname>
<given-names>A.O.</given-names>
</name>
<name>
<surname>Kumari</surname>
<given-names>R.</given-names>
</name>
<name>
<surname>Cao</surname>
<given-names>W.</given-names>
</name>
<name>
<surname>Gangappa</surname>
<given-names>S.</given-names>
</name>
<name>
<surname>York</surname>
<given-names>I.</given-names>
</name>
<name>
<surname>Sambhara</surname>
<given-names>S.</given-names>
</name>
<name>
<surname>Mittal</surname>
<given-names>S.K.</given-names>
</name>
</person-group>
<article-title>A bovine adenoviral vector-based H5N1 influenza -vaccine provides enhanced immunogenicity and protection at a significantly low dose</article-title>
<source>Mol. Ther. Methods Clin. Dev.</source>
<year>2018</year>
<volume>10</volume>
<fpage>210</fpage>
<lpage>222</lpage>
<pub-id pub-id-type="doi">10.1016/j.omtm.2018.07.007</pub-id>
<pub-id pub-id-type="pmid">30101154</pub-id>
</element-citation>
</ref>
<ref id="B234-viruses-11-00561">
<label>234.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Mailybayeva</surname>
<given-names>A.</given-names>
</name>
<name>
<surname>Yespembetov</surname>
<given-names>B.</given-names>
</name>
<name>
<surname>Ryskeldinova</surname>
<given-names>S.</given-names>
</name>
<name>
<surname>Zinina</surname>
<given-names>N.</given-names>
</name>
<name>
<surname>Sansyzbay</surname>
<given-names>A.</given-names>
</name>
<name>
<surname>Renukaradhya</surname>
<given-names>G.J.</given-names>
</name>
<name>
<surname>Petrovsky</surname>
<given-names>N.</given-names>
</name>
<name>
<surname>Tabynov</surname>
<given-names>K.</given-names>
</name>
</person-group>
<article-title>Improved influenza viral vector based Brucella abortus vaccine induces robust B and T-cell responses and protection against Brucella melitensis infection in pregnant sheep and goats</article-title>
<source>PLoS ONE</source>
<year>2017</year>
<volume>12</volume>
<elocation-id>e0186484</elocation-id>
<pub-id pub-id-type="doi">10.1371/journal.pone.0186484</pub-id>
<pub-id pub-id-type="pmid">29023541</pub-id>
</element-citation>
</ref>
<ref id="B235-viruses-11-00561">
<label>235.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Tabynov</surname>
<given-names>K.</given-names>
</name>
</person-group>
<article-title>Influenza viral vector based Brucella abortus vaccine: A novel vaccine candidate for veterinary practice</article-title>
<source>Expert Rev. Vaccines</source>
<year>2016</year>
<volume>15</volume>
<fpage>1237</fpage>
<lpage>1239</lpage>
<pub-id pub-id-type="doi">10.1080/14760584.2016.1208089</pub-id>
<pub-id pub-id-type="pmid">27356589</pub-id>
</element-citation>
</ref>
<ref id="B236-viruses-11-00561">
<label>236.</label>
<element-citation publication-type="journal">
<person-group person-group-type="author">
<name>
<surname>Yu</surname>
<given-names>J.</given-names>
</name>
<name>
<surname>Hika</surname>
<given-names>B.</given-names>
</name>
<name>
<surname>Liu</surname>
<given-names>R.</given-names>
</name>
<name>
<surname>Sheng</surname>
<given-names>Z.</given-names>
</name>
<name>
<surname>Hause</surname>
<given-names>B.M.</given-names>
</name>
<name>
<surname>Li</surname>
<given-names>F.</given-names>
</name>
<name>
<surname>Wang</surname>
<given-names>D.</given-names>
</name>
</person-group>
<article-title>The hemagglutinin-esterase fusion glycoprotein Is a primary determinant of the exceptional thermal and acid stability of influenza D virus</article-title>
<source>mSphere</source>
<year>2017</year>
<volume>2</volume>
<fpage>e00254-17</fpage>
<pub-id pub-id-type="doi">10.1128/mSphere.00254-17</pub-id>
<pub-id pub-id-type="pmid">28808690</pub-id>
</element-citation>
</ref>
</ref-list>
</back>
<floats-group>
<fig id="viruses-11-00561-f001" orientation="portrait" position="float">
<label>Figure 1</label>
<caption>
<p>Schematic illustration of the literature search strategy. (
<bold>A</bold>
) A literature search was conducted using different keyword combinations in the PubMed database. Initial screening was carried out by shortlisting articles that matched the title for topic relevance and the availability of the articles in full text or abstract as shown in the flow chart. (
<bold>B</bold>
) Articles obtained after the keyword search were categorized based on their content as described in the pie chart. A comprehensive analyses of influenza A related studies in bovines represented by donut chart were conducted. Abbreviations used: Influenza A virus, IAV; Influenza B virus, IBV; Influenza C virus, ICV; Influenza D virus, IDV.</p>
</caption>
<graphic xlink:href="viruses-11-00561-g001"></graphic>
</fig>
<fig id="viruses-11-00561-f002" orientation="portrait" position="float">
<label>Figure 2</label>
<caption>
<p>The host range for all four types (IAV, IBV, ICV, and IDV) of influenza viruses. The association of influenza disease in different mammalian species with reference to cattle (orange) is described separately. In each box, the bold black line represents active infection/disease; dotted black line represents the exposure without active infection/disease, as demonstrated by the serological evidence. A red dotted line in IAV indicates the possible source/routes of IAV infection (human, avian or swine) that can occur in bovines. Red blocked line indicates neither disease nor exposure. Vector graphic images used in the figure were taken from icon pool of the Microsoft Office and Freepik (
<uri xlink:href="www.freepik.com">www.freepik.com</uri>
).</p>
</caption>
<graphic xlink:href="viruses-11-00561-g002"></graphic>
</fig>
<fig id="viruses-11-00561-f003" orientation="portrait" position="float">
<label>Figure 3</label>
<caption>
<p>History timeline of the major influenza events in the past (
<bold>A</bold>
) Known human influenza pandemics along with the important outbreaks/discoveries. All the pandemics with year and country of origin are indicated in “black” flag, black font, while the other outbreaks/epidemics/discoveries are indicated in “orange” flag, red font. (
<bold>B</bold>
) influenza A incidences occurred in ruminants especially bovine species, were plotted based on the information from peer-reviewed articles. Only the natural infections/outbreaks and seroepidemiological studies reported in cattle in the past were included in the timeline. Experimental studies were excluded in this timeline. Illustrated major events included the major influenza outbreaks, cattle epizootics/respiratory disease with year and country of origin, and are represented by black triangle blocks, black font. Please note that both the timelines (A and B) have same dimensions starting with human pandemic as early as 1580 to 2013 H7N9 outbreaks and the timeframe of these cattle outbreaks/diseases (1889, 1893, 1914–1916, 1949, 1959–1960, 1971–1981, 1997–1999, 2005–2006) occurred almost concurrent to the human pandemic/outbreaks, which is indicative of the natural susceptibility of bovines to human influenza viruses. Most of the cattle influenza A isolates appeared to be related to human influenza A strains, with the HA glycoprotein similar to the prototypic human H2 and H3 subtypes.</p>
</caption>
<graphic xlink:href="viruses-11-00561-g003"></graphic>
</fig>
<table-wrap id="viruses-11-00561-t001" orientation="portrait" position="float">
<object-id pub-id-type="pii">viruses-11-00561-t001_Table 1</object-id>
<label>Table 1</label>
<caption>
<p>Natural and experimental cases of influenza A associated with ruminant species.</p>
</caption>
<table frame="hsides" rules="groups">
<thead>
<tr>
<th align="center" valign="middle" style="border-top:solid thin;border-bottom:solid thin" rowspan="1" colspan="1">Description</th>
<th align="center" valign="middle" style="border-top:solid thin;border-bottom:solid thin" rowspan="1" colspan="1">Year</th>
<th align="center" valign="middle" style="border-top:solid thin;border-bottom:solid thin" rowspan="1" colspan="1">Ref.</th>
</tr>
</thead>
<tbody>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">
<bold>Natural infection</bold>
</td>
<td align="center" valign="middle" rowspan="1" colspan="1"></td>
<td align="center" valign="middle" rowspan="1" colspan="1"></td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Influenza outbreak in Japan</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1951</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B76-viruses-11-00561" ref-type="bibr">76</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">*Incidence, level of influenza, and adeno virus antibodies in domestic animal species</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1969</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B25-viruses-11-00561" ref-type="bibr">25</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">*Antigenic characteristics of influenza viruses from domestic animals and birds (USSR)</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1973</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B89-viruses-11-00561" ref-type="bibr">89</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">*Influenza outbreak in cattle</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1973</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B90-viruses-11-00561" ref-type="bibr">90</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Isolation of influenza A strains from cattle</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1973</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B46-viruses-11-00561" ref-type="bibr">46</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">*Study of cattle influenza</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1976</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B92-viruses-11-00561" ref-type="bibr">92</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">*Influenza in cattle</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1977</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B91-viruses-11-00561" ref-type="bibr">91</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Hong Kong influenza A strains in calves</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1977</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B48-viruses-11-00561" ref-type="bibr">48</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">*Pathological anatomical examination of the lung from bovine influenza</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1977</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B94-viruses-11-00561" ref-type="bibr">94</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">*Influenza of cattle</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1978</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B93-viruses-11-00561" ref-type="bibr">93</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Unexplained sporadic milk drop in cows</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1997</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B95-viruses-11-00561" ref-type="bibr">95</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Bovine influenza</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1998</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B97-viruses-11-00561" ref-type="bibr">97</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Influenza A in dairy cows with sporadic milk syndrome</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1999</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B98-viruses-11-00561" ref-type="bibr">98</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Evidence of antibodies in sera/nasal samples against human influenza viruses from 17 outbreaks of respiratory disease with milk drop syndrome and diarrhea in cattle in 1998–1999</td>
<td align="center" valign="middle" rowspan="1" colspan="1">2002</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B99-viruses-11-00561" ref-type="bibr">99</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Wild animals as a reservoir for different bacterial and viral diseases including avian influenza</td>
<td align="center" valign="middle" rowspan="1" colspan="1">2002</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B102-viruses-11-00561" ref-type="bibr">102</xref>
]</td>
</tr>
<tr>
<td colspan="3" align="center" valign="middle" rowspan="1">
<bold>Experimental infection</bold>
</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">*Experimental infection of bovines with human influenza virus </td>
<td align="center" valign="middle" rowspan="1" colspan="1">1954</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B26-viruses-11-00561" ref-type="bibr">26</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">*Experimental inoculation of calves with influenza virus A/csf/Udmurtiia/116/73</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1977</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B27-viruses-11-00561" ref-type="bibr">27</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Experimental infection of influenza in yak and presence of H3N2 antibodies</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1974</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B103-viruses-11-00561" ref-type="bibr">103</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Recombinant vaccinia virus expressing HA in cattle, sheep, and poultry</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1986</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B104-viruses-11-00561" ref-type="bibr">104</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Intranasal inoculation of calves with live swine influenza virus </td>
<td align="center" valign="middle" rowspan="1" colspan="1">1987</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B105-viruses-11-00561" ref-type="bibr">105</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Experimental inoculation of a cat derived highly pathogenic avian influenza virus in calves</td>
<td align="center" valign="middle" rowspan="1" colspan="1">2008</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B106-viruses-11-00561" ref-type="bibr">106</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Experimental inoculation of highly pathogenic avian influenza virus H5N1 in cattle egrets </td>
<td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">2011</td>
<td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">[
<xref rid="B107-viruses-11-00561" ref-type="bibr">107</xref>
]</td>
</tr>
</tbody>
</table>
<table-wrap-foot>
<fn>
<p>Articles in non-English languages*.</p>
</fn>
</table-wrap-foot>
</table-wrap>
<table-wrap id="viruses-11-00561-t002" orientation="portrait" position="float">
<object-id pub-id-type="pii">viruses-11-00561-t002_Table 2</object-id>
<label>Table 2</label>
<caption>
<p>Serosurveillance studies of influenza A associated with ruminant species in the past.</p>
</caption>
<table frame="hsides" rules="groups">
<thead>
<tr>
<th align="center" valign="middle" style="border-top:solid thin;border-bottom:solid thin" rowspan="1" colspan="1">Description</th>
<th align="center" valign="middle" style="border-top:solid thin;border-bottom:solid thin" rowspan="1" colspan="1">Year</th>
<th align="center" valign="middle" style="border-top:solid thin;border-bottom:solid thin" rowspan="1" colspan="1">Ref.</th>
</tr>
</thead>
<tbody>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Influenza A and B specific antibodies in domestic and wild animals</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1965</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B118-viruses-11-00561" ref-type="bibr">118</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Serological study in Ottawa based on immunoprecipitation test found influenza A antibodies in sheep and goat among 14 species tested</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1975</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B119-viruses-11-00561" ref-type="bibr">119</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Serosurveillance of swine H1N1 in cattle and swine in Great Britain</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1978</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B120-viruses-11-00561" ref-type="bibr">120</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Serological screening of influenza B and C in cattle, horses and other animals in Japan</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1978</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B56-viruses-11-00561" ref-type="bibr">56</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Serological evidence of influenza A in cattle in Japan</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1978</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B111-viruses-11-00561" ref-type="bibr">111</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Influenza-specific antibodies not detected in indigenous and non-indigenous sheep breeds of Northern Ireland</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1984</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B121-viruses-11-00561" ref-type="bibr">121</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Influenza in ruminants: a review with information regarding viruses isolated from the cattle</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1984</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B47-viruses-11-00561" ref-type="bibr">47</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Single radial hemolysis to measure influenza antibody in cattle serum </td>
<td align="center" valign="middle" rowspan="1" colspan="1">1986</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B123-viruses-11-00561" ref-type="bibr">123</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Swine influenza virus as a component in the respiratory disease complex in calves</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1986</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B122-viruses-11-00561" ref-type="bibr">122</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Presence of influenza A specific antibodies in cattle with respiratory disease and reduced milk yield</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1998</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B96-viruses-11-00561" ref-type="bibr">96</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Vaccination study of foot and mouth disease and influenza in cattle and sheep</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1998</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B125-viruses-11-00561" ref-type="bibr">125</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Influenza A antibodies associated with an acute reduction in milk yield in cattle in Britain</td>
<td align="center" valign="middle" rowspan="1" colspan="1">2008</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B100-viruses-11-00561" ref-type="bibr">100</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Serosurveillance study of avian influenza H5N1 in cattle, buffaloes, sheep, goat, and other animals in Egypt</td>
<td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">2013</td>
<td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">[
<xref rid="B124-viruses-11-00561" ref-type="bibr">124</xref>
]</td>
</tr>
</tbody>
</table>
</table-wrap>
<table-wrap id="viruses-11-00561-t003" orientation="portrait" position="float">
<object-id pub-id-type="pii">viruses-11-00561-t003_Table 3</object-id>
<label>Table 3</label>
<caption>
<p>Utility of bovine cell/tissue cultures for influenza A studies in the past.</p>
</caption>
<table frame="hsides" rules="groups">
<thead>
<tr>
<th align="center" valign="middle" style="border-top:solid thin;border-bottom:solid thin" rowspan="1" colspan="1">Description</th>
<th align="center" valign="middle" style="border-top:solid thin;border-bottom:solid thin" rowspan="1" colspan="1">Year</th>
<th align="center" valign="middle" style="border-top:solid thin;border-bottom:solid thin" rowspan="1" colspan="1">Ref.</th>
</tr>
</thead>
<tbody>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Studies on the cellular enzymes and their role in the cytopathic effect of influenza in cell cultures</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1967</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B181-viruses-11-00561" ref-type="bibr">181</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Replication of WSN influenza virus in high titers in MDBK cell line at high and low multiplicity of infection</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1969</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B144-viruses-11-00561" ref-type="bibr">144</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">*Adaptation of the influenza virus in calf kidney cell cultures</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1969</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B182-viruses-11-00561" ref-type="bibr">182</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Study of infective and incomplete influenza virions grown in MDBK and HeLa cells</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1970</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B145-viruses-11-00561" ref-type="bibr">145</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Calf serum suppressed plaque formation of many influenza virus strains in different cell lines</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1970</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B183-viruses-11-00561" ref-type="bibr">183</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Influenza B virus propagation in bovine fetal kidney cell cultures: incomplete virus formation</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1970</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B148-viruses-11-00561" ref-type="bibr">148</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Influenza B virus forms plaque in primary calf kidney cells</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1971</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B156-viruses-11-00561" ref-type="bibr">156</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Interaction of swine influenza and bovine mycoplasma in bovine tracheal cultures</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1971</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B177-viruses-11-00561" ref-type="bibr">177</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">*Influenza virus adaptation (A2 (Hong Kong) 68) in calf kidney cell cultures</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1972</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B184-viruses-11-00561" ref-type="bibr">184</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Use of bovine kidney cells for the propagation of
<italic>ts</italic>
recombinant viruses</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1972</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B173-viruses-11-00561" ref-type="bibr">173</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Use of primary bovine kidney cells at 25 °C for growing low temperature adapted vaccine virus</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1973</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B174-viruses-11-00561" ref-type="bibr">174</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Influenza virions grown in Madin–Darby Bovine Kidney (MDBK) cells without calf serum have more uncleaved HA especially in the early phase indicating that HA cleavage is both host cell and strain dependent</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1973</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B166-viruses-11-00561" ref-type="bibr">166</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Influenza virus grown in MDBK cells in the presence of medium containing 2% calf serum caused cleavage of HA polypeptide, to HA1 and HA2 unlike serum-free medium due to the plasminogen component in the sera</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1973</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B167-viruses-11-00561" ref-type="bibr">167</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Use of bovine kidney and trachea organ cultures for influenza for studying the virus reactogenic and immunogenic properties</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1975</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B178-viruses-11-00561" ref-type="bibr">178</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Study of the polypeptide composition of incomplete influenza viruses propagated in MDBK cells</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1975</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B185-viruses-11-00561" ref-type="bibr">185</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Use of lung and trachea organ cultures from bovine and other species for the influenza studies</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1976</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B176-viruses-11-00561" ref-type="bibr">176</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Use of bovine embryo kidney cells, roller cultures for high titer influenza virus propagation</td>
<td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">1977</td>
<td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">[
<xref rid="B157-viruses-11-00561" ref-type="bibr">157</xref>
]</td>
</tr>
</tbody>
</table>
<table-wrap-foot>
<fn>
<p>Articles in non-English languages*.</p>
</fn>
</table-wrap-foot>
</table-wrap>
<table-wrap id="viruses-11-00561-t004" orientation="portrait" position="float">
<object-id pub-id-type="pii">viruses-11-00561-t004_Table 4</object-id>
<label>Table 4</label>
<caption>
<p>Summary of major bovine host antiviral factors and their interactions with influenza.</p>
</caption>
<table frame="hsides" rules="groups">
<thead>
<tr>
<th align="center" valign="middle" style="border-top:solid thin;border-bottom:solid thin" rowspan="1" colspan="1">Description</th>
<th align="center" valign="middle" style="border-top:solid thin;border-bottom:solid thin" rowspan="1" colspan="1">Year</th>
<th align="center" valign="middle" style="border-top:solid thin;border-bottom:solid thin" rowspan="1" colspan="1">Ref.</th>
</tr>
</thead>
<tbody>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Inhibition of influenza virus hemagglutination by cow’s milk</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1949</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B189-viruses-11-00561" ref-type="bibr">189</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">*Inhibition of influenza virus hemagglutination by bovine amniotic fluid factor </td>
<td align="center" valign="middle" rowspan="1" colspan="1">1954</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B193-viruses-11-00561" ref-type="bibr">193</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Mucoprotein from bovine submaxillary glands with restricted hemagglutination inhibition activity against influenza virus </td>
<td align="center" valign="middle" rowspan="1" colspan="1">1955</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B192-viruses-11-00561" ref-type="bibr">192</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Influenza virus inhibitor in human and cow milk </td>
<td align="center" valign="middle" rowspan="1" colspan="1">1960</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B226-viruses-11-00561" ref-type="bibr">226</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">*Beta inhibitors in bovine serum</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1963</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B227-viruses-11-00561" ref-type="bibr">227</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Use of sera from different species of animals to study periodate induced hemagglutination inhibitor</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1968</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B207-viruses-11-00561" ref-type="bibr">207</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Influenza A2/Hong Kong strains were sensitive to periodate-resistant inhibitors in normal bovine serum</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1971</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B206-viruses-11-00561" ref-type="bibr">206</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">*Serum inhibitors of hemagglutination</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1972</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B228-viruses-11-00561" ref-type="bibr">228</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Serum inhibitors of hemagglutination of A2/Hong Kong strains </td>
<td align="center" valign="middle" rowspan="1" colspan="1">1972</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B229-viruses-11-00561" ref-type="bibr">229</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">*Characterization of non-specific inhibitors of hemagglutination of influenza A virus in the sera of different species of animals and birds</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1977</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B208-viruses-11-00561" ref-type="bibr">208</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">*Serum inhibitors of cattle and influenza virus persistence in Madin–Darby Swine Kidney (MDSK) cells</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1980</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B230-viruses-11-00561" ref-type="bibr">230</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Conglutinin as bovine serum beta inhibitor of influenza virus hemagglutination and infectivity of H1 and H3 subtypes</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1992</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B212-viruses-11-00561" ref-type="bibr">212</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Isolation of influenza virus inhibitor, conglutinin </td>
<td align="center" valign="middle" rowspan="1" colspan="1">1992</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B214-viruses-11-00561" ref-type="bibr">214</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Opsonizing activity of conglutinin against influenza A virus </td>
<td align="center" valign="middle" rowspan="1" colspan="1">1993</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B213-viruses-11-00561" ref-type="bibr">213</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Recombinant bovine conglutinin deficient in N-terminal and collagenous domains and its activity against influenza virus</td>
<td align="center" valign="middle" rowspan="1" colspan="1">1996</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B211-viruses-11-00561" ref-type="bibr">211</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Bovine collectins and its antiviral activity against rota virus </td>
<td align="center" valign="middle" rowspan="1" colspan="1">1998</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B216-viruses-11-00561" ref-type="bibr">216</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">CL-43, bovine serum collectin, and its antiviral activity by inhibiting the hemagglutination activity of influenza A virus </td>
<td align="center" valign="middle" rowspan="1" colspan="1">2002</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B231-viruses-11-00561" ref-type="bibr">231</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Bovine collectins_Conglutinin, CL-43, and CL-46</td>
<td align="center" valign="middle" rowspan="1" colspan="1">2006</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B218-viruses-11-00561" ref-type="bibr">218</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Recombinant trimeric neck and carbohydrate recognition domains (NCRD) of bovine conglutinin and CL-46 demonstrated a higher level of intrinsic antiviral activity against influenza A virus </td>
<td align="center" valign="middle" rowspan="1" colspan="1">2010</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B217-viruses-11-00561" ref-type="bibr">217</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Aprotinin, a natural polypeptide of bovine lung origin can inhibit the HA cleavage of pdmH1N1 and its replication in different host systems</td>
<td align="center" valign="middle" rowspan="1" colspan="1">2011</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B219-viruses-11-00561" ref-type="bibr">219</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Bovine colostrum can enhance natural killer cell activity and thus boosts the immune response against influenza in a mouse model</td>
<td align="center" valign="middle" rowspan="1" colspan="1">2014</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B196-viruses-11-00561" ref-type="bibr">196</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" rowspan="1" colspan="1">Peptide inhibitors derived from lactoferrin C-lobe possess broad anti-influenza activity and prevented influenza hemagglutination and infection</td>
<td align="center" valign="middle" rowspan="1" colspan="1">2012, 2017</td>
<td align="center" valign="middle" rowspan="1" colspan="1">[
<xref rid="B199-viruses-11-00561" ref-type="bibr">199</xref>
,
<xref rid="B203-viruses-11-00561" ref-type="bibr">203</xref>
]</td>
</tr>
<tr>
<td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">Bovine lactoferrin interferes with the fusion of HA glycoprotein and thus inhibits influenza A infection</td>
<td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">2019</td>
<td align="center" valign="middle" style="border-bottom:solid thin" rowspan="1" colspan="1">[
<xref rid="B204-viruses-11-00561" ref-type="bibr">204</xref>
]</td>
</tr>
</tbody>
</table>
<table-wrap-foot>
<fn>
<p>Articles in non-English languages*.</p>
</fn>
</table-wrap-foot>
</table-wrap>
</floats-group>
</pmc>
</record>

Pour manipuler ce document sous Unix (Dilib)

EXPLOR_STEP=$WICRI_ROOT/Sante/explor/H2N2V1/Data/Pmc/Corpus
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000E41 | SxmlIndent | more

Ou

HfdSelect -h $EXPLOR_AREA/Data/Pmc/Corpus/biblio.hfd -nk 000E41 | SxmlIndent | more

Pour mettre un lien sur cette page dans le réseau Wicri

{{Explor lien
   |wiki=    Sante
   |area=    H2N2V1
   |flux=    Pmc
   |étape=   Corpus
   |type=    RBID
   |clé=     PMC:6631717
   |texte=   Influenza A in Bovine Species: A Narrative Literature Review
}}

Pour générer des pages wiki

HfdIndexSelect -h $EXPLOR_AREA/Data/Pmc/Corpus/RBID.i   -Sk "pubmed:31213032" \
       | HfdSelect -Kh $EXPLOR_AREA/Data/Pmc/Corpus/biblio.hfd   \
       | NlmPubMed2Wicri -a H2N2V1 

Wicri

This area was generated with Dilib version V0.6.33.
Data generation: Tue Apr 14 19:59:40 2020. Site generation: Thu Mar 25 15:38:26 2021