Data/hora: 02/06/2024 18:14:23

Biblioteca(s): | Embrapa Suínos e Aves.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | A - 1
Data corrente: | 13/10/2015
Data da última atualização: | 18/09/2017
Autoria: | NELSON, M. I.; SCHAEFER, R.; GAVA, D.; CANTAO, M. E.; ZANELLA, J. R. C.
Afiliação: | MARTHA IRENE NELSON, Fogarty International Center of the National Institutes of Health; REJANE SCHAEFER, CNPSA; DANIELLE GAVA, CNPSA; MAURICIO EGIDIO CANTAO, CNPSA; JANICE REIS CIACCI ZANELLA, CNPSA.
Título: | Influenza A viruses of human origin in swine, Brazil.
Ano de publicação: | 2015
Fonte/Imprenta: | Emerging Infectious Diseases, v. 21, n. 8, p. 1339 - 1347, 2015.
DOI: | http://dx.doi.org/10.3201/eid2108.141891
Idioma: | Inglês
Conteúdo: | The evolutionary origins of the influenza A(H1N1)pdm09 virus that caused the first outbreak of the 2009 pandemic in Mexico remain unclear, highlighting the lack of swine surveillance in Latin American countries. Although Brazil has one of the largest swine populations in the world, influenza was not thought to be endemic in Brazil?s swine until the major outbreaks of influenza A(H1N1)pdm09 in 2009. Through phylogenetic analysis of whole-genome sequences of influenza viruses of the H1N1, H1N2, and H3N2 subtypes collected in swine in Brazil during 2009?2012, we identified multiple previously uncharacterized influenza viruses of human seasonal H1N2 and H3N2 virus origin that have circulated undetected in swine for more than a decade. Viral diversity has further increased in Brazil through reassortment between co-circulating viruses, including A(H1N1)pdm09. The circulation of multiple divergent hemagglutinin lineages challenges the design of effective cross-protective vaccines and highlights the need for additional surveillance.
Thesagro: | Suinocultura; Virologia.
Thesaurus Nal: | Influenza A virus; Virology.
Categoria do assunto: | --
Registro original: | Embrapa Suínos e Aves (CNPSA)
Exemplares: | CNPSA - (20273-1) - UPC - AP - DD -  -  -  - DIS