Partial CDC data suggest that influenza deaths may have already reached as high as 2% of deaths for the week ending on Feb. 1 ...

Influenza levels in the US are the highest they've been in 15 years amid winter weather and a second wave of the virus.

A new strain of bird flu has infected a dairy worker in Nevada, marking the first cow-spread case, the CDC has reported.

Federal health officials say a dairy worker in Nevada has been infected with a new type of bird flu that’s different from the ...

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

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

U.S. medical services providers are seeing the greatest numbers of flu cases since the 2009-2010 flu season, the Centers for ...

MIAMI - Flu cases are rising rapidly across Florida, with the state among 27 experiencing "very high" flu activity, 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 ...

Flu cases are surging across the nation, closing nearly a dozen schools and swamping hospitals in some states. At least 24 ...

Scientists are calling on the US CDC to disclose data about the risks of bird flu to people and pets that was posted briefly online and quickly deleted.