Another spillover of the H5N1 bird flu virus from wild birds to dairy cattle appears to have occurred, this time in Arizona.

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

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

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

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 ...

The strain of bird flu is distinct from what has previously been found in dairy cattle. The finding raises some worrying ...

Last year, bird flu spread across the country as infected cattle were shipped from Texas after the virus first leapt to cows ...

Bird flu is spreading among Central Texas wild birds as migration brings more and more birds here for the winter.

Genome sequencing of milk from Nevada has identified a different strain of bird flu in dairy cows for the first time, the ...

The CDC updates on bird flu, noting low public risk despite a case confirmed in Texas, and recommends precautions for those ...