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

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 ...

The U.S. winter virus season is in full force, and by one measure is the most intense in 15 years.

More than 24 million people have had seasonal flu this season, according to estimates from the Centers for Disease Control ...

Despite the severity of this flu season, vaccination rates have remained consistent with previous years, according to the CDC ...

Low vaccination rates may be contributing to the spread of flu, but data suggests the number of cases so far this season is ...

It’s not unusual historically to see high numbers of respiratory viruses floating around during this time frame,” a UNC ...

Levels of influenza nationwide are now at the highest they have been since the peak of the 2009 swine flu pandemic, according to figures published Friday by the Centers for Disease Control and ...

One indicator of flu activity is the percentage of doctor’s office visits driven by flu-like symptoms. Last week, that number ...