So far, the H5N1 virus isn't transmitted between people — but the CDC has found a mutation in a human case "concerning." ...

Arizona currently has no confirmed human cases of bird flu, although two Pinal County workers were exposed through infected poultry in December.

Keith Poulsen’s jaw dropped when farmers showed him images on their cellphones at the World Dairy Expo in Wisconsin in ...

A new mutation and the first severe case of H5N1 bird flu discovered in a human in Louisiana has raised concern among some ...

First come the horseshoe crabs. Hoisting their round, tank-like shells, they trundle out of the Delaware Bay under the first ...

We are in a terrible situation and going into a worse situation,' one researcher says of response so far to bird flu's spread ...

At least 65 human cases of H5 bird flu have been confirmed this year, with the majority being detected in California.

The LA County Department of Public Health confirmed the first human case of bird flu in the county, just days after Gov.

Mississippi has confirmed H5N1 in a poultry flock. The birds are not part of food supply chain. What you need to know about bird flu symptoms, risk.