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

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

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