Most human cases of bird flu in North America have been mild, a fact that’s underscored by a new study of the first 46 ...

So far, the H5N1 virus isn't transmitted between people — but the CDC has found a mutation in a human case "concerning." ...

All year, I’ve been keeping tabs on the H5N1 avian flu outbreak in dairy cattle and birds in the United States. As a ...

The virus is spreading among animals, while viral mutations raise concerns about potential adaptation to human hosts.

Here's what the latest research is saying about how it is spreading and how to keep yourself and your pets safe.

The CDC has revealed the red flags it is monitoring for that suggest that bird flu was about to become the world's next pandemic.

Keith Poulsen's jaw dropped when farmers showed him images on their cellphones at the World Dairy Expo in Wisconsin in ...

H5N1 bird flu is spreading through cows, poultry, and wild birds, causing sporadic illnesses in people across the United ...

Officials in Arizona this week said nearly a half-dozen animals including a cheetah and a mountain lion at a Phoenix-area zoo died and others are sick after being exposed to the bird flu.