The ongoing spread of bird flu in the United States has alarmed experts — not just because of human cases causing severe illness, but also due to troubling new instances of infections in cats. A ...

Bird flu could be mutating to become more transmissible to humans, scientists have warned, as the US reported its first ...

Did you ever wonder why California is always in an emergency? Bird flu is the latest one. Gov. Gavin Newsom signed a declaration of emergency on Dec. 18 after a severe case in a human was documented.