Flu is taking off in the U.S., with 40 states reporting high or very high levels of flu-like illness last week.

Emergency room visits with influenza are now "very high" nationwide, the Centers for Disease Control and Prevention said ...

The CDC has revealed the red flags it is monitoring for that suggest that bird flu was about to become the world's next pandemic.

COLUMBUS, Ga. (WRBL) — This year, health care professionals recommend adding getting a flu vaccine to your New Year’s resolutions as flu activity peaks between December and February. CDC reports say ...

So far this season, the CDC estimates, there have been at least 5.3 million flu illnesses, 63,000 hospitalizations, and 2,700 ...