A second type of bird flu has been found in U.S. dairy cows for the first time, the U.S. Department of Agriculture (USDA) announced on Wednesday. Until recently, all dairy herd detections in the U.S.

The highly pathogenic bird flu virus that has surfaced in a Wisconsin dairy herd is not a lingering ember from earlier outbreaks in cattle. It is a fresh jump from wildlife into livestock, a new ...

Add Yahoo as a preferred source to see more of our stories on Google. Romain Doucelin/NurPhoto via Getty Images Avian influenza has been detected for the first time in a herd of dairy cattle in ...

A little-known variant of bird flu has evolved to become better adapted to infecting people and could pose a pandemic threat to humans, a team of researchers has warned.

Minnesota officials have quarantined a Stearns County dairy herd after milk samples tested positive for the H5N1 strain of bird flu. The U.S. Department of Agriculture confirmed the results March 21, ...

Since it was first detected in the United States in 2014, H5N1 avian influenza, commonly known as bird flu, has jumped from wild birds to farm animals and then to people, causing more than 70 human ...