The map of flu activity across the United States continues to darken, both figuratively and literally, as case numbers spike upward in most states, according to the Centers for Disease Control and ...

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

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

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

People who make a habit of sleeping on the job comprise a secret society of sorts within the U.S. labor force. Inspired by ...

The Louisville Metro Department of Public Health and Wellness reported a jump to 9,000 cases of the flu this week, up from ...