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 ...

just a moment of contact with someone in the infectious stage of an influenza infection can seal your fate for the next few weeks. For anyone, living through a case of the flu is deeply unpleasant.

The U.S. government failed to eliminate the virus on dairy farms when it was confined to a handful of states. Now at least 875 herds across 16 states have tested positive. Keith Poulsen’s jaw ...

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 ...

Researchers say the United States is not on a path to contain the bird flu on dairy farms. (Stephen Ausmus/Animal Research Services, USDA) Keith Poulsen’s jaw dropped when farmers showed him ...