Abstract
The complete genomic sequence of a new H9N2 avian influenza virus (AIV), isolated in northwestern China, was determined. Sequence and phylogenetic analyses based on the sequences of eight genomic segments revealed that the isolate is phylogenetically related to the Y280-like sublineage.
Highlights
The complete genomic sequence of a new H9N2 avian influenza virus (AIV), isolated in northwestern China, was determined
We found that the hemagglutinin (HA), neuraminidase (NA), and nonstructural (NS) genes of the new isolate share 92 to 98.0% nucleotide homologies with those of the H9N2 AIVs
The matrix (M) gene has 92.0 to 93.1% nucleotide similarity with a H6N1 virus isolated from Guangzhou province in 2004, indicating that complicated reassortments of AIVs occurred in China
Summary
The complete genomic sequence of a new H9N2 avian influenza virus (AIV), isolated in northwestern China, was determined. In China, H9N2 AIVs were first isolated from Guangdong province in 1994. Similar viruses were isolated in many provinces and these have been the most prevalent subtype in chicken flocks [5, 6, 7, 8].
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