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Three strains of H6N6 subtype avian influenza virus (AIV) were isolated from live-poultry markets of central China during 2009-2010. A phylogenetic analysis showed that these isolates originated from gene reassortment among different virus lineages of the H6 subtype. In an experimental infection of animals, the selected isolate was non-pathogenic for chickens and low-pathogenic for mice. The wild-type...
In 2007, a total of eight H9N2 influenza viruses were isolated from the water and fowl feces in Dongting Lake wetland, China. The genomes of the eight viruses were sequenced, and all eight gene segments were subjected to phylogenetic analysis. The results showed that all the isolates belonged to the same genotype, in which the HA, NA and NS gene segments were Chicken/Beijing/94-like; the PB2, PB1,...
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