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 ...

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

Cold and flu season is in full swing. As the months get colder and folks are indoors more often, these respiratory illnesses ...

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 ...

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

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

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.

What to Know State and local health officials are reporting a new wave of influenza cases that is entering its seventh week ...

Flu cases are surging across the country – more than half of states are now at “very high” levels, the most severe designation by the Center for Disease Control and Prevention – but is ...

Scientists are calling on the U.S. Centers for Disease Control and Prevention (CDC) to disclose data about the risks of ...

So far this season, the CDC estimates, there have been at least 24 million flu illnesses, 310,000 hospitalizations and 13,000 ...