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OJVRTM
Online Journal of Veterinary Research©
Hadi Tavakkoli1,
Elahe Moeini2*
1Department of Clinical Science, Faculty of Veterinary Medicine, Shahid Bahonar University of
Kerman, 2Young Researchers and Elite Club,
Baft Branch, Islamic Azad University, Baft, Iran.
ABSTRACT
Tavakkoli H, Moeini E., Effects of H9N2 avian influenza virus in Serinus waterslager canaries., Onl J Vet Res., 20(7):492-497, 2016. Twelve 5 month old waterslager canaries
were inoculated intranasally with heterologous low pathogenic H9N2 avian
influenza virus. Viral titers in tracheal and cloacal swabs were
determined by TaqMan real time PCR. Clinical signs,
replication and excretion time of
the virus were then assessed. Five birds exhibited decreased activity, lethargy, ruffled feathers and
decreased feed consumption. Viruses were detected in tracheal swabs by day 3
and cloacal ones at day 4 post
inoculation and maximum titers at days 2 and 3 in same swabs. Virus was recovered from cloaca longer compared with tracheal
virus. Clinical signs and excretion patterns suggest that a low pathogenic H9N2 avian
influenza virus can replicate in canaries inducing mild clinical signs and that
it could play a role in the epidemiology of influenza affecting poultry and public health.
Keywords: Canary, H9N2, Real time PCR, Serinus
canaries, Waterslager.
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