The emergence of novel swine influenza viruses in North America.
Identifieur interne : 000A41 ( Main/Exploration ); précédent : 000A40; suivant : 000A42The emergence of novel swine influenza viruses in North America.
Auteurs : Christopher W. Olsen [États-Unis]Source :
- Virus research [ 0168-1702 ] ; 2002.
Descripteurs français
- KwdFr :
- Amérique du Nord (épidémiologie), Animaux (MeSH), Canada (épidémiologie), Grippe chez les oiseaux (transmission), Grippe chez les oiseaux (virologie), Grippe humaine (virologie), Humains (MeSH), Infections à Orthomyxoviridae (médecine vétérinaire), Infections à Orthomyxoviridae (transmission), Infections à Orthomyxoviridae (virologie), Maladies des porcs (transmission), Maladies des porcs (virologie), Oiseaux (MeSH), Spécificité d'espèce (MeSH), Suidae (MeSH), Variation génétique (MeSH), Virus de la grippe A (classification), Virus de la grippe A (génétique), Virus de la grippe A (immunologie), Virus de la grippe A (physiologie), États-Unis (MeSH).
- MESH :
- génétique : Virus de la grippe A.
- immunologie : Virus de la grippe A.
- médecine vétérinaire : Infections à Orthomyxoviridae.
- physiologie : Virus de la grippe A.
- virologie : Grippe chez les oiseaux, Grippe humaine, Infections à Orthomyxoviridae, Maladies des porcs.
- épidémiologie : Amérique du Nord, Canada, Grippe chez les oiseaux, Infections à Orthomyxoviridae, Maladies des porcs.
- classification : Animaux, Humains, Oiseaux, Spécificité d'espèce, Suidae, Variation génétique, Virus de la grippe A, États-Unis.
English descriptors
- KwdEn :
- Animals (MeSH), Birds (MeSH), Canada (epidemiology), Genetic Variation (MeSH), Humans (MeSH), Influenza A virus (classification), Influenza A virus (genetics), Influenza A virus (immunology), Influenza A virus (physiology), Influenza in Birds (transmission), Influenza in Birds (virology), Influenza, Human (virology), North America (epidemiology), Orthomyxoviridae Infections (transmission), Orthomyxoviridae Infections (veterinary), Orthomyxoviridae Infections (virology), Species Specificity (MeSH), Swine (MeSH), Swine Diseases (transmission), Swine Diseases (virology), United States (MeSH).
- MESH :
- classification : Influenza A virus.
- epidemiology : Canada, North America.
- genetics : Influenza A virus.
- immunology : Influenza A virus.
- physiology : Influenza A virus.
- transmission : Influenza in Birds, Orthomyxoviridae Infections, Swine Diseases.
- veterinary : Orthomyxoviridae Infections.
- virology : Influenza in Birds, Influenza, Human, Orthomyxoviridae Infections, Swine Diseases.
- Animals, Birds, Genetic Variation, Humans, Species Specificity, Swine, United States.
Abstract
Since 1997, novel viruses of three different subtypes and five different genotypes have emerged as agents of influenza among pigs in North America. The appearance of these viruses is remarkable because there were no substantial changes in the overall epidemiology of swine influenza in the United States and Canada for over 60 years prior to this time. Viruses of the classical H1N1 lineage were virtually the exclusive cause of swine influenza from the time of their initial isolation in 1930 through 1998. Antigenic drift variants of these H1N1 viruses were isolated in 1991-1998, but a much more dramatic antigenic shift occurred with the emergence of H3N2 viruses in 1997-1998. In particular, H3N2 viruses with genes derived from human, swine and avian viruses have become a major cause of swine influenza in North America. In addition, H1N2 viruses that resulted from reassortment between the triple reassortant H3N2 viruses and classical H1N1 swine viruses have been isolated subsequently from pigs in at least six states. Finally, avian H4N6 viruses crossed the species barrier to infect pigs in Canada in 1999. Fortunately, these H4N6 viruses have not been isolated beyond their initial farm of origin. If these viruses spread more widely, they will represent another antigenic shift for our swine population, and could pose a threat to the world's human population. Research on these novel viruses may offer important clues to the genetic basis for interspecies transmission of influenza viruses.
DOI: 10.1016/s0168-1702(02)00027-8
PubMed: 12034486
Affiliations:
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A</term><term>États-Unis</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Since 1997, novel viruses of three different subtypes and five different genotypes have emerged as agents of influenza among pigs in North America. The appearance of these viruses is remarkable because there were no substantial changes in the overall epidemiology of swine influenza in the United States and Canada for over 60 years prior to this time. Viruses of the classical H1N1 lineage were virtually the exclusive cause of swine influenza from the time of their initial isolation in 1930 through 1998. Antigenic drift variants of these H1N1 viruses were isolated in 1991-1998, but a much more dramatic antigenic shift occurred with the emergence of H3N2 viruses in 1997-1998. In particular, H3N2 viruses with genes derived from human, swine and avian viruses have become a major cause of swine influenza in North America. In addition, H1N2 viruses that resulted from reassortment between the triple reassortant H3N2 viruses and classical H1N1 swine viruses have been isolated subsequently from pigs in at least six states. Finally, avian H4N6 viruses crossed the species barrier to infect pigs in Canada in 1999. Fortunately, these H4N6 viruses have not been isolated beyond their initial farm of origin. If these viruses spread more widely, they will represent another antigenic shift for our swine population, and could pose a threat to the world's human population. Research on these novel viruses may offer important clues to the genetic basis for interspecies transmission of influenza viruses.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">12034486</PMID><DateCompleted><Year>2002</Year><Month>08</Month><Day>07</Day></DateCompleted><DateRevised><Year>2019</Year><Month>09</Month><Day>10</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0168-1702</ISSN><JournalIssue CitedMedium="Print"><Volume>85</Volume><Issue>2</Issue><PubDate><Year>2002</Year><Month>May</Month><Day>10</Day></PubDate></JournalIssue><Title>Virus research</Title><ISOAbbreviation>Virus Res.</ISOAbbreviation></Journal><ArticleTitle>The emergence of novel swine influenza viruses in North America.</ArticleTitle><Pagination><MedlinePgn>199-210</MedlinePgn></Pagination><Abstract><AbstractText>Since 1997, novel viruses of three different subtypes and five different genotypes have emerged as agents of influenza among pigs in North America. The appearance of these viruses is remarkable because there were no substantial changes in the overall epidemiology of swine influenza in the United States and Canada for over 60 years prior to this time. Viruses of the classical H1N1 lineage were virtually the exclusive cause of swine influenza from the time of their initial isolation in 1930 through 1998. Antigenic drift variants of these H1N1 viruses were isolated in 1991-1998, but a much more dramatic antigenic shift occurred with the emergence of H3N2 viruses in 1997-1998. In particular, H3N2 viruses with genes derived from human, swine and avian viruses have become a major cause of swine influenza in North America. In addition, H1N2 viruses that resulted from reassortment between the triple reassortant H3N2 viruses and classical H1N1 swine viruses have been isolated subsequently from pigs in at least six states. Finally, avian H4N6 viruses crossed the species barrier to infect pigs in Canada in 1999. Fortunately, these H4N6 viruses have not been isolated beyond their initial farm of origin. If these viruses spread more widely, they will represent another antigenic shift for our swine population, and could pose a threat to the world's human population. Research on these novel viruses may offer important clues to the genetic basis for interspecies transmission of influenza viruses.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Olsen</LastName><ForeName>Christopher W</ForeName><Initials>CW</Initials><AffiliationInfo><Affiliation>Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, 2015 Linden Drive, Madison, WI 53706, USA. olsenc@svm.vetmed.wisc.edu</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType><PublicationType UI="D013486">Research Support, U.S. Gov't, Non-P.H.S.</PublicationType><PublicationType UI="D016454">Review</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>Netherlands</Country><MedlineTA>Virus Res</MedlineTA><NlmUniqueID>8410979</NlmUniqueID><ISSNLinking>0168-1702</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000818" MajorTopicYN="N">Animals</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D001717" MajorTopicYN="N">Birds</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D002170" MajorTopicYN="N">Canada</DescriptorName><QualifierName UI="Q000453" MajorTopicYN="N">epidemiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014644" MajorTopicYN="N">Genetic Variation</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D006801" MajorTopicYN="N">Humans</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D009980" MajorTopicYN="N">Influenza A virus</DescriptorName><QualifierName UI="Q000145" MajorTopicYN="N">classification</QualifierName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000276" MajorTopicYN="N">immunology</QualifierName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D005585" MajorTopicYN="N">Influenza in Birds</DescriptorName><QualifierName UI="Q000635" MajorTopicYN="N">transmission</QualifierName><QualifierName UI="Q000821" MajorTopicYN="N">virology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D007251" MajorTopicYN="N">Influenza, Human</DescriptorName><QualifierName UI="Q000821" MajorTopicYN="Y">virology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D009656" MajorTopicYN="N">North America</DescriptorName><QualifierName UI="Q000453" MajorTopicYN="N">epidemiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D009976" MajorTopicYN="N">Orthomyxoviridae Infections</DescriptorName><QualifierName UI="Q000635" MajorTopicYN="N">transmission</QualifierName><QualifierName UI="Q000662" MajorTopicYN="Y">veterinary</QualifierName><QualifierName UI="Q000821" MajorTopicYN="N">virology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013045" MajorTopicYN="N">Species Specificity</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013552" MajorTopicYN="N">Swine</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013553" MajorTopicYN="N">Swine Diseases</DescriptorName><QualifierName UI="Q000635" MajorTopicYN="N">transmission</QualifierName><QualifierName UI="Q000821" MajorTopicYN="Y">virology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014481" MajorTopicYN="N">United States</DescriptorName></MeshHeading></MeshHeadingList><NumberOfReferences>104</NumberOfReferences></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>2002</Year><Month>5</Month><Day>30</Day><Hour>10</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2002</Year><Month>8</Month><Day>8</Day><Hour>10</Hour><Minute>1</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2002</Year><Month>5</Month><Day>30</Day><Hour>10</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">12034486</ArticleId><ArticleId IdType="pii">S0168170202000278</ArticleId><ArticleId IdType="doi">10.1016/s0168-1702(02)00027-8</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>États-Unis</li></country><region><li>Wisconsin</li></region></list><tree><country name="États-Unis"><region name="Wisconsin"><name sortKey="Olsen, Christopher W" sort="Olsen, Christopher W" uniqKey="Olsen C" first="Christopher W" last="Olsen">Christopher W. 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