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 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 ...

At least four cattle herds in Nevada have tested positive for a strain of H5N1 bird flu never before seen in cows, state ...

A branch of the H5N1 bird flu family tree that hadn't previously been seen in cattle has now been detected in dairy cows.

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

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

Herds of cattle in Nevada tested positive for the strain of H5N1 bird flu never before seen in cows, state agriculture ...

Six dairy herds in Nevada have tested positive for a newer variant of the H5N1 bird flu virus that’s been associated with ...

The strain of bird flu is distinct from what has previously been found in dairy cattle. The finding means the virus has again ...

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 ...

Experts said the discovery raises questions about how widely the virus has spread, and underscores the difficulty of ...

The new H5N1 version, known as D1.1, was found in dairy cattle in Nevada and is different than the B3.13 type that has spread ...