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

Dairy cows in Nevada have been infected with a new strain of bird flu virus different from the one circulating in other herds ...

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 version of the avian influenza virus different from the one rampaging through herds since last spring has been detected in ...

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 ...

A second strain of bird flu has been detected in U.S. dairy cattle, marking the first confirmed infections of this particular ...