2hon MSN
Most human cases of bird flu in North America have been mild, a fact that’s underscored by a new study of the first 46 ...
The call to authorize a vaccine comes after the CDC announced that a person in Louisiana was hospitalized with the country's first known case of severe illness caused by the virus earlier this month.
So far, the H5N1 virus isn't transmitted between people — but the CDC has found a mutation in a human case "concerning." ...
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