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Novel variants of clade 2.3.4 highly pathogenic avian influenza A(H5N1) viruses, China.


ABSTRACT: We characterized 7 highly pathogenic avian influenza A(H5N1) viruses isolated from poultry in China during 2009-2012 and found that they belong to clade 2.3.4 but do not fit within the 3 defined subclades. Antigenic drift in subtype H5N1 variants may reduce the efficacy of vaccines designed to control these viruses in poultry.

SUBMITTER: Gu M 

PROVIDER: S-EPMC3840869 | biostudies-literature |

REPOSITORIES: biostudies-literature

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