Influence of microclimate conditions on the cumulative exposure of nursery pigs to swine influenza A viruses.
Identifieur interne : 000047 ( Main/Exploration ); précédent : 000046; suivant : 000048Influence of microclimate conditions on the cumulative exposure of nursery pigs to swine influenza A viruses.
Auteurs : J B Ferreira [Canada] ; H. Grgi [Canada] ; R. Friendship [Canada] ; É Nagy [Canada] ; Z. Poljak [Canada]Source :
- Transboundary and emerging diseases [ 1865-1682 ] ; 2018.
Descripteurs français
- KwdFr :
- Animaux, Anticorps antiviraux (sang), Femelle, Humidité, Infections à Orthomyxoviridae (médecine vétérinaire), Infections à Orthomyxoviridae (virologie), Infections à Orthomyxoviridae (épidémiologie), Maladies des porcs (virologie), Maladies des porcs (épidémiologie), Microclimat, Ontario (épidémiologie), Sous-type H1N1 du virus de la grippe A (immunologie), Sous-type H1N1 du virus de la grippe A (isolement et purification), Sous-type H3N2 du virus de la grippe A (immunologie), Sous-type H3N2 du virus de la grippe A (isolement et purification), Suidae, Température, Tests d'inhibition de l'hémagglutination (médecine vétérinaire), Études séroépidémiologiques, Études transversales.
- MESH :
- immunologie : Sous-type H1N1 du virus de la grippe A, Sous-type H3N2 du virus de la grippe A.
- isolement et purification : Sous-type H1N1 du virus de la grippe A, Sous-type H3N2 du virus de la grippe A.
- médecine vétérinaire : Infections à Orthomyxoviridae, Tests d'inhibition de l'hémagglutination.
- sang : Anticorps antiviraux.
- virologie : Infections à Orthomyxoviridae, Maladies des porcs.
- épidémiologie : Infections à Orthomyxoviridae, Maladies des porcs, Ontario.
- Animaux, Femelle, Humidité, Microclimat, Suidae, Température, Études séroépidémiologiques, Études transversales.
English descriptors
- KwdEn :
- Animals, Antibodies, Viral (blood), Cross-Sectional Studies, Female, Hemagglutination Inhibition Tests (veterinary), Humidity, Influenza A Virus, H1N1 Subtype (immunology), Influenza A Virus, H1N1 Subtype (isolation & purification), Influenza A Virus, H3N2 Subtype (immunology), Influenza A Virus, H3N2 Subtype (isolation & purification), Microclimate, Ontario (epidemiology), Orthomyxoviridae Infections (epidemiology), Orthomyxoviridae Infections (veterinary), Orthomyxoviridae Infections (virology), Seroepidemiologic Studies, Swine, Swine Diseases (epidemiology), Swine Diseases (virology), Temperature.
- MESH :
- chemical , blood : Antibodies, Viral.
- epidemiology : Ontario, Orthomyxoviridae Infections, Swine Diseases.
- immunology : Influenza A Virus, H1N1 Subtype, Influenza A Virus, H3N2 Subtype.
- isolation & purification : Influenza A Virus, H1N1 Subtype, Influenza A Virus, H3N2 Subtype.
- veterinary : Hemagglutination Inhibition Tests, Orthomyxoviridae Infections.
- virology : Orthomyxoviridae Infections, Swine Diseases.
- Animals, Cross-Sectional Studies, Female, Humidity, Microclimate, Seroepidemiologic Studies, Swine, Temperature.
Abstract
The objective of this study was to investigate the association between environmental temperature and humidity and the presence of antibodies for two specific strains of swine influenza viruses: A/SW/ON/105-56/12/H3N2 (H3N2_D) and A/SW/ON/84/2012/H1N1 (H1N1_P). A cross-sectional study was performed in a commercial farm, and a total of 450 pigs at 10 weeks of age were blood sampled, by sampling 10 pigs per week for 45 weeks corresponding to 45 batches. Exposure of pigs to H3N2_D and H1N1_P virus was assessed by haemagglutination inhibition assay (HI), and a result of ≥1:40 was considered as indication of a positive exposure status for a specific strain. The selection of those two viruses was based on the fact that H1N1 was the dominant virus in Ontario herds, and H3N2 had been previously isolated in this particular farm. Environmental conditions were recorded through a portable device every 5 min and then summarized using descriptive statistics. The association between HI titres and environmental microconditions, in the nursery, was evaluated through random effect linear and logistic regression. The results showed that the prevalence for H1N1_P was high throughout the study (≥70%); however, for H3N2_D, the seroprevalence declined by the end of the study period. Results also showed an association between cumulative exposure to the viruses and temperature and relative humidity (p < .05). These results suggest that microclimate conditions can influence transmission patterns of influenza viruses in swine barns, and that even a herd with relatively simple demographics could have persistent and cocirculation of two different influenza A viruses IAV strains.
DOI: 10.1111/tbed.12701
PubMed: 28940764
Affiliations:
Links toward previous steps (curation, corpus...)
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Friendship</name><affiliation wicri:level="1"><nlm:affiliation>Department of Population Medicine, University of Guelph, Guelph, ON, Canada.</nlm:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Population Medicine, University of Guelph, Guelph, ON</wicri:regionArea><wicri:noRegion>ON</wicri:noRegion></affiliation></author><author><name sortKey="Nagy, E" sort="Nagy, E" uniqKey="Nagy E" first="É" last="Nagy">É Nagy</name><affiliation wicri:level="1"><nlm:affiliation>Department of Pathobiology, University of Guelph, Guelph, ON, Canada.</nlm:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Pathobiology, University of Guelph, Guelph, ON</wicri:regionArea><wicri:noRegion>ON</wicri:noRegion></affiliation></author><author><name sortKey="Poljak, Z" sort="Poljak, Z" uniqKey="Poljak Z" first="Z" last="Poljak">Z. Poljak</name><affiliation wicri:level="1"><nlm:affiliation>Department of Population Medicine, University of Guelph, Guelph, ON, Canada.</nlm:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Population Medicine, University of Guelph, Guelph, ON</wicri:regionArea><wicri:noRegion>ON</wicri:noRegion></affiliation></author></analytic><series><title level="j">Transboundary and emerging diseases</title><idno type="eISSN">1865-1682</idno><imprint><date when="2018" type="published">2018</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Animals</term><term>Antibodies, Viral (blood)</term><term>Cross-Sectional Studies</term><term>Female</term><term>Hemagglutination Inhibition Tests (veterinary)</term><term>Humidity</term><term>Influenza A Virus, H1N1 Subtype (immunology)</term><term>Influenza A Virus, H1N1 Subtype (isolation & purification)</term><term>Influenza A Virus, H3N2 Subtype (immunology)</term><term>Influenza A Virus, H3N2 Subtype (isolation & purification)</term><term>Microclimate</term><term>Ontario (epidemiology)</term><term>Orthomyxoviridae Infections (epidemiology)</term><term>Orthomyxoviridae Infections (veterinary)</term><term>Orthomyxoviridae Infections (virology)</term><term>Seroepidemiologic Studies</term><term>Swine</term><term>Swine Diseases (epidemiology)</term><term>Swine Diseases (virology)</term><term>Temperature</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Animaux</term><term>Anticorps antiviraux (sang)</term><term>Femelle</term><term>Humidité</term><term>Infections à Orthomyxoviridae (médecine vétérinaire)</term><term>Infections à Orthomyxoviridae (virologie)</term><term>Infections à Orthomyxoviridae (épidémiologie)</term><term>Maladies des porcs (virologie)</term><term>Maladies des porcs (épidémiologie)</term><term>Microclimat</term><term>Ontario (épidémiologie)</term><term>Sous-type H1N1 du virus de la grippe A (immunologie)</term><term>Sous-type H1N1 du virus de la grippe A (isolement et purification)</term><term>Sous-type H3N2 du virus de la grippe A (immunologie)</term><term>Sous-type H3N2 du virus de la grippe A (isolement et purification)</term><term>Suidae</term><term>Température</term><term>Tests d'inhibition de l'hémagglutination (médecine vétérinaire)</term><term>Études séroépidémiologiques</term><term>Études transversales</term></keywords><keywords scheme="MESH" type="chemical" qualifier="blood" xml:lang="en"><term>Antibodies, Viral</term></keywords><keywords scheme="MESH" qualifier="epidemiology" xml:lang="en"><term>Ontario</term><term>Orthomyxoviridae Infections</term><term>Swine Diseases</term></keywords><keywords scheme="MESH" qualifier="immunologie" xml:lang="fr"><term>Sous-type H1N1 du virus de la grippe A</term><term>Sous-type H3N2 du virus de la grippe A</term></keywords><keywords scheme="MESH" qualifier="immunology" xml:lang="en"><term>Influenza A Virus, H1N1 Subtype</term><term>Influenza A Virus, H3N2 Subtype</term></keywords><keywords scheme="MESH" qualifier="isolation & purification" xml:lang="en"><term>Influenza A Virus, H1N1 Subtype</term><term>Influenza A Virus, H3N2 Subtype</term></keywords><keywords scheme="MESH" qualifier="isolement et purification" xml:lang="fr"><term>Sous-type H1N1 du virus de la grippe A</term><term>Sous-type H3N2 du virus de la grippe A</term></keywords><keywords scheme="MESH" qualifier="médecine vétérinaire" xml:lang="fr"><term>Infections à Orthomyxoviridae</term><term>Tests d'inhibition de l'hémagglutination</term></keywords><keywords scheme="MESH" qualifier="sang" xml:lang="fr"><term>Anticorps antiviraux</term></keywords><keywords scheme="MESH" qualifier="veterinary" xml:lang="en"><term>Hemagglutination Inhibition Tests</term><term>Orthomyxoviridae Infections</term></keywords><keywords scheme="MESH" qualifier="virologie" xml:lang="fr"><term>Infections à Orthomyxoviridae</term><term>Maladies des porcs</term></keywords><keywords scheme="MESH" qualifier="virology" xml:lang="en"><term>Orthomyxoviridae Infections</term><term>Swine Diseases</term></keywords><keywords scheme="MESH" qualifier="épidémiologie" xml:lang="fr"><term>Infections à Orthomyxoviridae</term><term>Maladies des porcs</term><term>Ontario</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Animals</term><term>Cross-Sectional Studies</term><term>Female</term><term>Humidity</term><term>Microclimate</term><term>Seroepidemiologic Studies</term><term>Swine</term><term>Temperature</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Animaux</term><term>Femelle</term><term>Humidité</term><term>Microclimat</term><term>Suidae</term><term>Température</term><term>Études séroépidémiologiques</term><term>Études transversales</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The objective of this study was to investigate the association between environmental temperature and humidity and the presence of antibodies for two specific strains of swine influenza viruses: A/SW/ON/105-56/12/H3N2 (H3N2_D) and A/SW/ON/84/2012/H1N1 (H1N1_P). A cross-sectional study was performed in a commercial farm, and a total of 450 pigs at 10 weeks of age were blood sampled, by sampling 10 pigs per week for 45 weeks corresponding to 45 batches. Exposure of pigs to H3N2_D and H1N1_P virus was assessed by haemagglutination inhibition assay (HI), and a result of ≥1:40 was considered as indication of a positive exposure status for a specific strain. The selection of those two viruses was based on the fact that H1N1 was the dominant virus in Ontario herds, and H3N2 had been previously isolated in this particular farm. Environmental conditions were recorded through a portable device every 5 min and then summarized using descriptive statistics. The association between HI titres and environmental microconditions, in the nursery, was evaluated through random effect linear and logistic regression. The results showed that the prevalence for H1N1_P was high throughout the study (≥70%); however, for H3N2_D, the seroprevalence declined by the end of the study period. Results also showed an association between cumulative exposure to the viruses and temperature and relative humidity (p < .05). These results suggest that microclimate conditions can influence transmission patterns of influenza viruses in swine barns, and that even a herd with relatively simple demographics could have persistent and cocirculation of two different influenza A viruses IAV strains.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" IndexingMethod="Curated" Owner="NLM"><PMID Version="1">28940764</PMID><DateCompleted><Year>2018</Year><Month>07</Month><Day>06</Day></DateCompleted><DateRevised><Year>2018</Year><Month>12</Month><Day>02</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1865-1682</ISSN><JournalIssue CitedMedium="Internet"><Volume>65</Volume><Issue>1</Issue><PubDate><Year>2018</Year><Month>Feb</Month></PubDate></JournalIssue><Title>Transboundary and emerging diseases</Title><ISOAbbreviation>Transbound Emerg Dis</ISOAbbreviation></Journal><ArticleTitle>Influence of microclimate conditions on the cumulative exposure of nursery pigs to swine influenza A viruses.</ArticleTitle><Pagination><MedlinePgn>e145-e154</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/tbed.12701</ELocationID><Abstract><AbstractText>The objective of this study was to investigate the association between environmental temperature and humidity and the presence of antibodies for two specific strains of swine influenza viruses: A/SW/ON/105-56/12/H3N2 (H3N2_D) and A/SW/ON/84/2012/H1N1 (H1N1_P). A cross-sectional study was performed in a commercial farm, and a total of 450 pigs at 10 weeks of age were blood sampled, by sampling 10 pigs per week for 45 weeks corresponding to 45 batches. Exposure of pigs to H3N2_D and H1N1_P virus was assessed by haemagglutination inhibition assay (HI), and a result of ≥1:40 was considered as indication of a positive exposure status for a specific strain. The selection of those two viruses was based on the fact that H1N1 was the dominant virus in Ontario herds, and H3N2 had been previously isolated in this particular farm. Environmental conditions were recorded through a portable device every 5 min and then summarized using descriptive statistics. The association between HI titres and environmental microconditions, in the nursery, was evaluated through random effect linear and logistic regression. The results showed that the prevalence for H1N1_P was high throughout the study (≥70%); however, for H3N2_D, the seroprevalence declined by the end of the study period. Results also showed an association between cumulative exposure to the viruses and temperature and relative humidity (p < .05). These results suggest that microclimate conditions can influence transmission patterns of influenza viruses in swine barns, and that even a herd with relatively simple demographics could have persistent and cocirculation of two different influenza A viruses IAV strains.</AbstractText><CopyrightInformation>© 2017 Blackwell Verlag GmbH.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Ferreira</LastName><ForeName>J B</ForeName><Initials>JB</Initials><Identifier Source="ORCID">http://orcid.org/0000-0002-8611-808X</Identifier><AffiliationInfo><Affiliation>Department of Population Medicine, University of Guelph, Guelph, ON, Canada.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Grgić</LastName><ForeName>H</ForeName><Initials>H</Initials><AffiliationInfo><Affiliation>Department of Population Medicine, University of Guelph, Guelph, ON, Canada.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Friendship</LastName><ForeName>R</ForeName><Initials>R</Initials><AffiliationInfo><Affiliation>Department of Population Medicine, University of Guelph, Guelph, ON, Canada.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Nagy</LastName><ForeName>É</ForeName><Initials>É</Initials><AffiliationInfo><Affiliation>Department of Pathobiology, University of Guelph, Guelph, ON, Canada.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Poljak</LastName><ForeName>Z</ForeName><Initials>Z</Initials><AffiliationInfo><Affiliation>Department of Population Medicine, University of Guelph, Guelph, ON, Canada.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2017</Year><Month>09</Month><Day>22</Day></ArticleDate></Article><MedlineJournalInfo><Country>Germany</Country><MedlineTA>Transbound Emerg Dis</MedlineTA><NlmUniqueID>101319538</NlmUniqueID><ISSNLinking>1865-1674</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D000914">Antibodies, Viral</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000818" MajorTopicYN="N">Animals</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D000914" MajorTopicYN="N">Antibodies, Viral</DescriptorName><QualifierName UI="Q000097" MajorTopicYN="Y">blood</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D003430" MajorTopicYN="N">Cross-Sectional Studies</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D005260" MajorTopicYN="N">Female</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D006385" MajorTopicYN="N">Hemagglutination Inhibition Tests</DescriptorName><QualifierName UI="Q000662" MajorTopicYN="N">veterinary</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D006813" MajorTopicYN="N">Humidity</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D053118" MajorTopicYN="N">Influenza A Virus, H1N1 Subtype</DescriptorName><QualifierName UI="Q000276" MajorTopicYN="Y">immunology</QualifierName><QualifierName UI="Q000302" MajorTopicYN="N">isolation & purification</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D053122" MajorTopicYN="N">Influenza A Virus, H3N2 Subtype</DescriptorName><QualifierName UI="Q000276" MajorTopicYN="Y">immunology</QualifierName><QualifierName UI="Q000302" MajorTopicYN="N">isolation & purification</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D008834" MajorTopicYN="N">Microclimate</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D009864" MajorTopicYN="N">Ontario</DescriptorName><QualifierName UI="Q000453" MajorTopicYN="N">epidemiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D009976" MajorTopicYN="N">Orthomyxoviridae Infections</DescriptorName><QualifierName UI="Q000453" MajorTopicYN="N">epidemiology</QualifierName><QualifierName UI="Q000662" MajorTopicYN="Y">veterinary</QualifierName><QualifierName UI="Q000821" MajorTopicYN="N">virology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D016036" MajorTopicYN="N">Seroepidemiologic Studies</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013552" MajorTopicYN="N">Swine</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013553" MajorTopicYN="N">Swine Diseases</DescriptorName><QualifierName UI="Q000453" MajorTopicYN="Y">epidemiology</QualifierName><QualifierName UI="Q000821" MajorTopicYN="N">virology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013696" MajorTopicYN="N">Temperature</DescriptorName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">antibodies</Keyword><Keyword MajorTopicYN="N">cocirculation</Keyword><Keyword MajorTopicYN="N">environment microclimate</Keyword><Keyword MajorTopicYN="N">humidity</Keyword><Keyword MajorTopicYN="N">swine influenza virus</Keyword><Keyword MajorTopicYN="N">temperature</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2017</Year><Month>02</Month><Day>23</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2017</Year><Month>9</Month><Day>25</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2018</Year><Month>7</Month><Day>7</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2017</Year><Month>9</Month><Day>24</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">28940764</ArticleId><ArticleId IdType="doi">10.1111/tbed.12701</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Canada</li></country></list><tree><country name="Canada"><noRegion><name sortKey="Ferreira, J B" sort="Ferreira, J B" uniqKey="Ferreira J" first="J B" last="Ferreira">J B Ferreira</name></noRegion><name sortKey="Friendship, R" sort="Friendship, R" uniqKey="Friendship R" first="R" last="Friendship">R. Friendship</name><name sortKey="Grgi, H" sort="Grgi, H" uniqKey="Grgi H" first="H" last="Grgi">H. Grgi</name><name sortKey="Nagy, E" sort="Nagy, E" uniqKey="Nagy E" first="É" last="Nagy">É Nagy</name><name sortKey="Poljak, Z" sort="Poljak, Z" uniqKey="Poljak Z" first="Z" last="Poljak">Z. Poljak</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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