Re-emergence of a highly pathogenic avian influenza H5N1 virus of clade 2.3.4.4b in poultry in France
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Two epidemic waves of the same HPAI H5N1 virus, three months apart, were observed in poultry farms in southwestern France in 2022-2023. The high genetic similarity of the viruses observed between the two waves suggests a re-emergence of the virus probably link... ...
