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 ...

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

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.

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 ...