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

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

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 ...

With respiratory illness season at its peak, the latest CDC data shows a significant rise in flu cases nationwide, while ...

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

The U.S. influenza rate is at or near its highest level in at least 15 years and is still on the rise, the U.S. Centers for ...

Outpatient health care visits for flu-like illnesses are at their highest levels in 15 years, according to data updated ...