An avian disease that is spreading and killing tons of birds is more frequently making the jump to mammals, which has health experts appropriately concerned. So far, the risk to humans of so-called ...

Among the many diseases that afflict wild birds, there is avian flu, which made national news when it began decimating flocks of domestic turkeys and chickens. This very pathogenic strain (known as ...

The current bird flu outbreak has already affected cattle in at least nine states, based on reports compiled by the United States Department of Agriculture (USDA). (Photo by Matthew Ludak for The ...

The H5N1 bird-flu virus has infected a third person in the US, this time with respiratory symptoms. The new patient's cough and sore throat could help the virus get better at infecting humans.

At least four cattle herds in Nevada have tested positive for a strain of H5N1 bird flu never before seen in cows, state agriculture officials confirmed Wednesday, and respiratory symptoms like ...