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Provedor de dados:  Rev. Bras. Ciênc. Avic.
País:  Brazil
Título:  Seroprevalence survey of H9N2 avian influenza virus in backyard chickens around the Caspian Sea in Iran
Autores:  Hadipour,MM
Data:  2010-03-01
Ano:  2010
Palavras-chave:  Avian Influenza virus
Backyard chickens
Caspian Sea
H9N2
Seroprevalence
Iran
HI
Resumo:  Since 1998, an epidemic of avian influenza occurred in the Iranian poultry industry. The identified agent presented low pathogenicity, and was subtyped as an H9N2 avian influenza virus. Backyard chickens can play an important role in the epidemiology of H9N2 avian influenza virus infection. Close contact of backyard chickens with migratory birds, especially with aquatic birds, as well as neighboring poultry farms, may pose the risk of transmitting avian influenza virus, but little is known about the disease status of backyard poultry. A H9N2 avian influenza virus seroprevalence survey was carried out in 700 backyard chickens from villages around the Caspian Sea, Northern Iran, using the hemagglutination-inhibition (HI) test. The studied backyard chickens had not been previously vaccinated and showed no clinical signs of disease. The mean antibody titers found were 6.8, 7.5, 5.9, 7.2, 5.7, 6.4, 6.2 and the seroprevalence was 76.2%, 79.5%, 68.18%, 78.27%, 65%, 72.31% and 71.4% as found in seven villages. Overall HI titer and seroprevalence against H9N2 were 6.52 and 72.98%, respectively.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Identificador:  http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2010000100008
Editor:  Fundação APINCO de Ciência e Tecnologia Avícolas
Relação:  10.1590/S1516-635X2010000100008
Formato:  text/html
Fonte:  Brazilian Journal of Poultry Science v.12 n.1 2010
Direitos:  info:eu-repo/semantics/openAccess
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