Article
A low pathogenic H5N2 influenza virus isolated in Taiwan acquired high pathogenicity by consecutive passages in chickens.
The Journal of veterinary medical science - 1 Jun 2011
Soda Kosuke, Cheng Ming-Chu, Yoshida Hiromi, Endo Mayumi, Lee Shu-Hwae, Okamatsu Masatoshi, Sakoda Yoshihiro, Wang Ching-Ho, Kida Hiroshi
Abstract excerpt
H5N2 viruses were isolated from cloacal swab samples of apparently healthy chickens in Taiwan in 2003 and 2008 during surveillance of avian influenza. Each of the viruses was eradicated by stamping out. The official diagnosis report indicated that the Intravenous Pathogenicity Indexes (IVPIs) of the isolates were 0.00 and 0.89, respectively, indicating that these were low pathogenic strains, although the...
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