Flu activity remains "very high" in most states, the Centers for Disease Control said this week, as illnesses, emergency room ...

The U.S. is experiencing its most intense flu season in 15 years, with 24 million infections, 310,000 hospitalisations, and ...

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

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

Levels of influenza nationwide are now at the highest they have been since the peak of the 2009 swine flu pandemic, according ...

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 ...