Flu cases are ramping up across the country and here in Washington. The CDC said it has seen a 15-year high in the number of ...

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

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

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

For the first time since 1952, publication of the CDC's Morbidity and Mortality Weekly Report was halted. It returned on Feb.

A map published by the CDC shows that 32 states and Washington, D.C., have “very high” levels of flu, while 11 states are ...

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 ...

Cases of the seasonal flu in the U.S. have reached their highest numbers in more than a decade, according to the Centers for Disease Control and Prevention.

Scientists are calling on the CDC to disclose data about the risks of bird flu that were posted briefly online last week but quickly deleted.

Americans are not the only ones getting sick from the flu this year. An ongoing bird flu outbreak has infected millions of ...