The strain of bird flu is distinct from what has previously been found in dairy cattle. The finding means the virus has again spilled over from birds to cows, and it raises some worrying questions.

Researchers have a new hope for preventing severe illness from the bird flu after finding a groundbreaking antibody treatment ...

Researchers are reporting mass die offs of wild birds and sea mammals due to bird flu. They're tracking the deaths to better understand the virus and how it might create a greater threat to humans.

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

Nearly 119,000 birds have been culled at a farm in California after a bird flu called H5N9 was detected among the poultry ...

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

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

Bird flu has decimated poultry flocks and infected cattle herds. The risk to humans is currently low, but that could easily ...

The bill would implement a moratorium for a decade. “I am not against vaccination in any way,” the freshman lawmaker said.

The U.S. Department of Agriculture has detected a bird flu strain in dairy cattle that previously had not been seen in cows, ...

Cows in Nevada have been infected with a strain of H5N1 bird flu different from the strain detected in all other herds to this point in the ongoing dairy outbreak. It's the same strain that killed a ...

Shares of vaccine companies such as Moderna (MRNA), Pfizer (PFE) and BioNTech (BNTX), among others, are falling after a ...