Dairy herds in Nevada have been infected by a version of the H5N1 bird flu not previously seen in cows, putting virologists ...

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 ...

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 ...

A version of the H5N1 virus that has killed one person and severely sickened another has been detected in milk samples ...

Cows in Nevada have been infected with a strain of H5N1 bird flu different from the strain detected in all other herds to ...

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

The USDA said four Nevada dairy herds were infected with an H5N1 bird flu strain that has circulated in wild birds, making ...

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 Agriculture said.

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

A version of the H5N1 bird flu virus that killed a person in Louisiana and severely sickened a teenager in Canada has now ...