H5N1 bird flu has now crossed into U.S. dairy cattle for the first time, and alarmingly, it did so through just one spillover ...

Does avian influenza affect wild birds? Find out if you need to take down bird feeders. Plus learn the risk to backyard ...

Zoetis received conditional USDA approval for an avian flu vaccine. Major poultry and dairy organizations back vaccine use to control the virus. The Trump administration is rolling out a new strategy ...