MEMPHIS, Tenn. — The outbreaks of the highly pathogenic H5 avian influenza A virus that devastated North American poultry farms in late 2014 into the summer of 2015 did not persist in wild aquatic birds, suggesting they are not an ongoing source of HPAI viruses, according to a study July 25 in the Proceedings of the National Academy of Sciences.
The H5 avian influenza A virus was initially spread by migratory waterfowl, but evidence suggests such highly pathogenic flu viruses do not persist in. . .
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