San Mateo County public health officials reported finding H5N1 bird flu in a pet cat and a backyard poultry flock.

With data showing a significant rise in flu cases nationwide, medical experts are describing it as the worst flu season since ...

Scientists are calling on the U.S. Centers for Disease Control and Prevention (CDC) to disclose data about the risks of bird ...

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

The weekly number of lab-confirmed influenza cases on Long Island was the highest in at least the past two seasons, with ...

The map of flu activity across the United States continues to darken, both figuratively and literally, as case numbers spike ...

NEW YORK (AP) — All live poultry markets in New York City and some of its suburbs were ordered Friday to close for a week ...

The Centers for Disease Control and Prevention lists Illinois in the high category for flu cases, and across the Chicago area ...

Low vaccination rates may be contributing to the spread of flu, but data suggests the number of cases so far this season is ...

Flu has surged to high levels across the US, straining hospitals. Experts discuss 2024-25 flu season trends, symptoms to ...

Despite the severity of this flu season, vaccination rates have remained consistent with previous years, according to the CDC ...

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