This time it really did feel like the end of an era. And what an inglorious end it was, a gruesome mockery of a powerful, ...

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 ...

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.

For the first time, a new genotype of avian influenza has been identified in U.S. dairy cows, prompting biosecurity efforts.

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