More than 156 million chickens, ducks, turkeys and other fowl have been slaughtered across the United States since the ...

The U.S. winter virus season is in full force, and by one measure is the most intense in 15 years.

Avian influenza, or “bird flu,” is a disease caused by influenza A viruses that spread widely among wild birds, and can cause ...

Though H5N1 has fueled much of the current bird flu outbreak, it is not the only bird flu strain that has been confirmed in the U.S. A strain of bird flu called H5N9 was detected at a duck farm in ...

Schools around the U.S. are closing due to surges of flu and other illnesses, which are sickening students and staff. Here's ...

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

The flu is widespread and continuing to increase across Oklahoma, with positive cases and hospitalizations well above ...