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Isolation and genetic characterization of novel reassortant H6N6 subtype avian influenza viruses isolated from chickens in eastern China.

Wu, Haibo; Lu, Rufeng; Peng, Xiuming; Peng, Xiaorong; Cheng, Linfang; Jin, Changzhong; Lu, Xiangyun; Xie, Tiansheng; Yao, Hangping; Wu, Nanping.
Arch Virol; 161(7): 1859-72, 2016 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-27101069
H6 subtype avian influenza viruses (AIVs) possess the ability to cross the species barrier to infect mammals and pose a threat to human health. From June 2014 to July 2015, 12 H6N6 AIVs were isolated from chickens in live-poultry markets in Zhejiang Province, Eastern China. Phylogenetic analysis showed that these isolates received their genes from H6 and H9N2 subtype AIVs of poultry in China. These novel reassortant viruses showed moderate pathogenicity in mice and were able to replicate in mice without prior adaptation. Considering that novel reassorted H6N6 viruses were isolated from chickens in this study, it is possible that these chickens play an important role in the generation of novel reassorted H6N6 AIVs, and these results emphasize the need for continued surveillance of the H6N6 AIVs circulating in poultry.
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