A second form of bird flu has been found in Nevada dairy cows, the U.S. Department of Agriculture announced Wednesday.

Cows in Nevada have been infected with a strain of H5N1 bird flu different from the strain detected in all other herds to this point in the ongoing dairy outbreak. It's the same strain that killed a ...

A version of the H5N1 virus that has killed one person and severely sickened another has been detected in milk samples ...

The USDA said four Nevada dairy herds were infected with an H5N1 bird flu strain that has circulated in wild birds, making ...