The newer variant of avian influenza that recently infected dairy cattle in Nevada has a genetic change that’s thought to ...

A second type of bird flu has been found in U.S. dairy cows for the first time, the U.S. Department of Agriculture announced Wednesday.

A branch of the H5N1 bird flu family tree that hadn't previously been seen in cattle has now been detected in dairy cows.

Until last week, all bird flu in dairy herds had been identified as the B3.13 variant, which was believed to have come from ...