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Genetic characterization of influenza virus circulating in Brazilian pigs during 2009 and 2010 reveals a high prevalence of the pandemic H1N1 subtype.

Influenza and other respiratory viruses - 1 Sept 2013

Rajão Daniela S, Costa Adrienny T R, Brasil Bruno S A F, Del Puerto Helen L, Oliveira Fernanda G, Alves Fabiana, Braz Gissandra F, Reis Jenner K P, Guedes Roberto M C, Lobato Zélia I P, Leite Rômulo C

Abstract excerpt

BACKGROUND: Influenza A viruses circulating in pigs in Brazil are still not characterized, and only limited data are available about swine influenza epidemiology in the country. Therefore, we characterized the hemagglutinin (HA) and neuraminidase (NA) genes of influenza viruses isolated from Brazilian pigs. We also evaluated one case of probable swine-to-human transmission. METHODS: Twenty influenza viruses...

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Identifiers

PMID: 23280098
DOI: 10.1111/irv.12072
PMCID: PMC5781213

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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