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

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

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

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.

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 ...

With recent outbreaks reported across the United States, the facility has maintained rigorous protocols for two years and ...

Florida experiences "very high" flu activity, causing public health concerns and prompting calls for vaccinations and early ...

The flu is spreading far and wide across the U.S. – and influenza A is largely to blame. Of all the flu tests reported to the ...