Risk factors for infection with highly pathogenic influenza A virus (H5N1) in commercial chickens in Bangladesh.
Vet Rec
; 164(24): 743-6, 2009 Jun 13.
Article
em En
| MEDLINE
| ID: mdl-19525522
ABSTRACT
A matched case-control study was carried out to identify risk factors for highly pathogenic avian influenza A virus (subtype H5N1) infection in commercial chickens in Bangladesh. A total of 33 commercial farms diagnosed with H5N1 before September 9, 2007, were enrolled as cases, and 99 geographically matched unaffected farms were enrolled as control farms. Farm data were collected using a pretested questionnaire, and analysed by matched-pair analysis and multivariate conditional logistic regression. Two factors independently and positively associated with H5N1 infection remained in the final model. They were 'farm accessible to feral and wild animals' (odds ratio [OR] 5.71, 95 per cent confidence interval [CI] 1.81 to 18.0, P=0.003) and 'footbath at entry to farm/shed' (OR 4.93, 95 per cent CI 1.61 to 15.1, P=0.005). The use of a designated vehicle for sending eggs to a vendor or market appeared to be a protective factor (OR 0.14, 95 per cent CI 0.02 to 0.88, P=0.036).
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Galinhas
/
Virus da Influenza A Subtipo H5N1
/
Influenza Aviária
Tipo de estudo:
Etiology_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Animals
País/Região como assunto:
Asia
Idioma:
En
Revista:
Vet Rec
Ano de publicação:
2009
Tipo de documento:
Article
País de afiliação:
Bangladesh