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

U.S. dairy cattle tested positive for a strain of bird flu that previously had not been seen in cows, the U.S. Department of ...

A new variant of the H5N1 bird flu — the same one that led to the death of a Louisiana man — has for first the first time ...

Dairy cattle in Nevada have been infected with a new type of bird flu that's different from the version that has spread in ...