The owner of the Crescent Duck Farm in Aquebogue, N.Y., has been forced to euthanize its flock of more than 100,000 ducks due to positive bird flu tests.

H5N1 avian influenza continues to spread amid commercial and backyard poultry, and additional cases have been reported in domestic cats ...

A number of bird flu cases have been reported in the Chicago area in recent weeks, leading to many questions about how quickly the virus is spreading and how worried residents should be.

Bird flu, or avian influenza, primarily affects birds but there have been cases reported in humans as well. Unfortunately, a patient recently died from severe avian influenza A (H5N1), marking the ...