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PLoS One. 2014 Oct 16;9(10):e110141. doi: 10.1371/journal.pone.0110141. eCollection 2014.
Avian Influenza Virus (H11N9) in Migratory Shorebirds Wintering in the Amazon Region, Brazil.
de Araujo J1, de Azevedo J?nior SM2, Gaidet N3, Hurtado RF1, Walker D4, Thomazelli LM1, Ometto T1, Seixas MM1, Rodrigues R2, Galindo DB5, da Silva AC6, Rodrigues AM5, Bomfim LL5, Mota MA6, Larraz?bal ME7, Branco JO8, Serafini P9, Neto IS9, Franks J4, Webby RJ4, Webster RG4, Durigon EL1.
Author information
Abstract
Aquatic birds are the natural reservoir for avian influenza viruses (AIV). Habitats in Brazil provide stopover and wintering sites for water birds that migrate between North and South America. The current study was conducted to elucidate the possibility of the transport of influenza A viruses by birds that migrate annually between the Northern and Southern Hemispheres. In total, 556 orotracheal/cloacal swab samples were collected for influenza A virus screening using real-time RT-PCR (rRT-PCR). The influenza A virus-positive samples were subjected to viral isolation. Four samples were positive for the influenza A matrix gene by rRT-PCR. From these samples, three viruses were isolated, sequenced and characterized. All positive samples originated from a single bird species, the ruddy turnstone (Arenaria interpres), that was caught in the Amazon region at Caet? Bay, Northeast Par?, at Ilha de Canelas. To our knowledge, this is the first isolation of H11N9 in the ruddy turnstone in South America.
PMID:
25329399
[PubMed - in process]
PMCID:
PMC4199675
Free PMC Article
Avian Influenza Virus (H11N9) in Migratory Shorebirds Wintering in the Amazon Region, Brazil.
de Araujo J1, de Azevedo J?nior SM2, Gaidet N3, Hurtado RF1, Walker D4, Thomazelli LM1, Ometto T1, Seixas MM1, Rodrigues R2, Galindo DB5, da Silva AC6, Rodrigues AM5, Bomfim LL5, Mota MA6, Larraz?bal ME7, Branco JO8, Serafini P9, Neto IS9, Franks J4, Webby RJ4, Webster RG4, Durigon EL1.
Author information
Abstract
Aquatic birds are the natural reservoir for avian influenza viruses (AIV). Habitats in Brazil provide stopover and wintering sites for water birds that migrate between North and South America. The current study was conducted to elucidate the possibility of the transport of influenza A viruses by birds that migrate annually between the Northern and Southern Hemispheres. In total, 556 orotracheal/cloacal swab samples were collected for influenza A virus screening using real-time RT-PCR (rRT-PCR). The influenza A virus-positive samples were subjected to viral isolation. Four samples were positive for the influenza A matrix gene by rRT-PCR. From these samples, three viruses were isolated, sequenced and characterized. All positive samples originated from a single bird species, the ruddy turnstone (Arenaria interpres), that was caught in the Amazon region at Caet? Bay, Northeast Par?, at Ilha de Canelas. To our knowledge, this is the first isolation of H11N9 in the ruddy turnstone in South America.
PMID:
25329399
[PubMed - in process]
PMCID:
PMC4199675
Free PMC Article
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