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

While the risk to humans of exposure from cows or milk remains low, this new flu spillover from birds into cows raises the need for continued surveillance.

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

The finding indicates that the virus, known as H5N1, has spilled from birds into cows at least twice — leading to these two ...

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 ...

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

On January 31, 2025, the U.S. Department of Agriculture announced that dairy cows in Nevada have been infected with a new ...