The winter flu season features two types of influenza. Here's what you need to know about them and how they differ.

Federal health officials say a dairy worker in Nevada has been infected with a new type of bird flu that’s different from the ...

Annette Prince, director of the Chicago Bird Collision Monitors picks up a dead red-breasted merganser at 35th Street Beach ...

The progression of the species-jumping disease has been unprecedented, including the first-ever U.S. cases of infections in ...

This latest outbreak is part of a broader epizootic that has swept across the United States, affecting not only poultry but ...