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

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

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

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.

WASHINGTON, D.C. (7News) — The Centers for Disease Control (CDC) estimates 24 million flu cases this season. 7News checked ...

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

Eleven states are experiencing very high levels of flu and some schools have been closed by the burden on students and staff.

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

The CDC says flu rates in the United States have reached the highest level in 15 years. It seems like all respiratory ...

With data showing a significant rise in flu cases nationwide, medical experts are describing it as the worst flu season since ...

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