Surveillance for influenza viruses in poultry and swine, west Africa, 2006-2008.
Emerg Infect Dis
; 18(9): 1446-52, 2012 Sep.
Article
em En
| MEDLINE
| ID: mdl-22932129
ABSTRACT
To determine the extent of animal influenza virus circulation in Côte d'Ivoire, Benin, and Togo, we initiated systematic year-round active influenza surveillance in backyard birds (predominantly chickens, guinea fowl, and ducks) and pigs. A total of 26,746 swab specimens were screened by using reverse transcription PCR. Animal influenza prevalence was estimated at 0 (95% CIs for each of the 2 study years 0-0.04% to 0-1.48% [birds] and 0-0.28% to 0-5% [pigs]). In addition, 2,276 serum samples from the same populations were negative for influenza-specific antibodies. These data indicate that the environments and host populations previously identified as harboring high levels of influenza virus in Southeast Asia do not do so in these 3 countries. The combination of climate and animal density factors might be responsible for what appears to be the absence of influenza virus in the backyard sector of the 3 countries.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Vírus da Influenza A
/
Doenças dos Suínos
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Infecções por Orthomyxoviridae
/
Influenza Aviária
Tipo de estudo:
Prevalence_studies
/
Prognostic_studies
/
Risk_factors_studies
/
Screening_studies
Limite:
Animals
País/Região como assunto:
Africa
Idioma:
En
Ano de publicação:
2012
Tipo de documento:
Article