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

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.

With the devastating 1918 pandemic in mind, US health officials saw an outbreak in Asia and swung into action. What happened ...

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

During his presidential campaign, Donald Trump stood before a table of groceries, a box of eggs included, and promised: "When ...

A new strain of bird flu has been detected in US dairy cows, raising concerns among experts. The USDA confirmed a new version ...

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

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 ...

Legislation intended to aid the state’s response to highly-pathogenic avian influenza, or bird flu, passed the Senate ...

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

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