A case of bird flu in a Missouri resident is the only diagnosis in the United States this year where the person did not have contact with infected dairy cattle or poultry (Stephen Ausmus/Animal ...

A herd of dairy cows (Photo courtesy of Farm Watch via Flickr CC-BY-SA 2.0). Keith Poulsen’s jaw dropped when farmers showed him images on their cellphones at the World Dairy Expo in Wisconsin in ...

Keith Poulsen’s jaw dropped when farmers showed him images on their cellphones at the World Dairy Expo in Wisconsin in October. A livestock veterinarian at the University of Wisconsin, Poulsen had ...

Keith Poulsen’s jaw dropped when farmers showed him images on their cellphones at the World Dairy Expo in Wisconsin in October. A livestock veterinarian at the University of Wisconsin, Poulsen had ...

Nearly a year into the first outbreak of the bird flu among cattle, the virus shows no sign of slowing. The U.S. government failed to eliminate the virus on dairy farms when it was confined to a ...

Outbreaks of H5N1, or highly pathogenic avian influenza — commonly known as bird flu — have been confirmed at a commercial ...

The bird flu virus has now become lethal. The Center for Disease Control and Prevention disclosed that a person with severe avian influenza died from the infection in early January, becoming the first ...

A genetic analysis suggests the bird flu virus mutated inside a Louisiana patient who contracted the nation’s first severe case of the illness, the U.S. Centers for Disease Control and Prevention said ...