characterisation of a highly pathogenic h5n1 clade 2.3.2 influenza virus isolated from swans in shanghai, spring 2009, one strain of h5n1 clade 2.3.2 virus was isolated from wild swans in shanghai, indicating the importance of the wild swan in the ecology of this highly pathogenic avian influenza virus (hpaiv) in eastern china. pathogenicity experiments conducted in this study indicated that the virus was highly pathogenic for chickens but lowly pathogenic for mammalian hosts, as evidenced by reduced infection of mice. the analysis of complete genome sequences and genetic evolution showed that a/ ...201121904849
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