A new mutation and the first severe case of H5N1 bird flu discovered in a human in Louisiana has raised concern among some ...
A backyard flock in Vermont was sickened with H5N1, agricultural officials said on Thursday, following other reports of bird ...
55mon MSN
The virus in the first severe human bird flu case in the U.S. was found to have mutated. Newsweek's live blog is closed.
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