Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1153351
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dc.contributor.authorTOCHETTO, C.
dc.contributor.authorJUNQUEIRA, D. M.
dc.contributor.authorANDERSON, T. K.
dc.contributor.authorGAVA, D.
dc.contributor.authorHAACH, V.
dc.contributor.authorCANTAO, M. E.
dc.contributor.authorBAKER, A. L. V.
dc.contributor.authorSCHAEFER, R.
dc.date.accessioned2023-04-25T19:52:41Z-
dc.date.available2023-04-25T19:52:41Z-
dc.date.created2023-04-25
dc.date.issued2023
dc.identifier.citationViruses, v. 15, n. 576, 2023.
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1153351-
dc.descriptionAbstract: In South America, the evolutionary history of influenza A virus (IAV) in swine has been obscured by historically low levels of surveillance, and this has hampered the assessment of the zoonotic risk of emerging viruses. The extensive genetic diversity of IAV in swine observed globally has been attributed mainly to bidirectional transmission between humans and pigs. We conducted surveillance in swine in Brazil during 2011?2020 and characterized 107 H1N1, H1N2, and H3N2 IAVs. Phylogenetic analysis based on HA and NA segments revealed that human seasonal IAVs were introduced at least eight times into swine in Brazil since the mid-late 1980s. Our analyses revealed three genetic clades of H1 within the 1B lineage originated from three distinct spillover events, and an H3 lineage that has diversified into three genetic clades. The N2 segment from human seasonal H1N2 and H3N2 viruses was introduced into swine six times and a single introduction of an N1 segment from the human H1N1 virus was identified. Additional analysis revealed further reassortment with H1N1pdm09 viruses. All these introductions resulted in IAVs that apparently circulate only in Brazilian herds. These results reinforce the significant contributions of human IAVs to the genetic diversity of IAV in swine and reiterate the importance of surveillance of IAV in pigs.
dc.language.isoeng
dc.rightsopenAccess
dc.subjectSpillover
dc.subjectGenetic diversity
dc.subjectReassortment
dc.titleIntroductions of human-origin Seasonal H3N2, H1N2 and pre-2009 H1N1 Influenza Viruses to swine in Brazil.
dc.typeArtigo de periódico
dc.subject.thesagroSuíno
dc.subject.thesagroGenética Animal
dc.subject.thesagroVariação Genética
dc.subject.nalthesaurusInfluenza A virus
dc.subject.nalthesaurusDisease surveillance
dc.subject.nalthesaurusSwine
riaa.ainfo.id1153351
riaa.ainfo.lastupdate2023-04-25
dc.identifier.doihttps://doi.org/10.3390/v15020576
dc.contributor.institutionDANIELLE GAVA, CNPSA; MAURICIO EGIDIO CANTAO, CNPSA; REJANE SCHAEFER, CNPSA.
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