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

When bird flu first struck dairy cattle in Texas last year, it was unclear how the virus might spread. As of now, H5N1 has ...

The number of bird flu cases in Central Massachusetts is relatively low, compared to a swath of the state that runs from ...

Are eggs safe to eat amid the current avian flu outbreak? Have people in the U.S. contracted bird flu? We VERIFY the answers to common questions.

Here's what you need to know about the highly pathogenic H5N1 avian influenza, and what bird flu might mean to you, your ...