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 ...

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 ...

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

Schools in at least two states canceled classes at the start of this week amid a surge in influenza cases nationwide.

(NBC, KYMA/KECY) - Flu rates in the United States have reached their highest level in over 15 years, according to the Centers ...

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

San Mateo County public health officials reported finding H5N1 bird flu in a pet cat and a backyard poultry flock.

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

Data from the Centers for Disease Control and Prevention on doctors' visits for flu-like symptoms indicate this is the most ...