NEW YORK (AP) — The U.S. winter virus season is in full force, and by one measure is the most intense in 15 years.

Two state health departments have issued new guidance on testing for the bird flu, following a CDC advisory, even as it says ...

Are people at risk for bird flu? How can I protect myself? Bird flu’s risk for the general public is still low, with no signs ...

It's an unusual winter for respiratory illnesses. The flu is peaking twice: once in early January and again in February.

Six dairy herds in Nevada have tested positive for a newer variant of the H5N1 bird flu virus that’s been associated with ...

State officials say the highly pathogenic avian influenza – more commonly known as bird flu – is widespread in much of the ...