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

Does it feel like you know a lot of people fighting the flu virus this winter? The Centers for Disease Control and Prevention ...

The winter flu season features two types of influenza. Here's what you need to know about them and how they differ.

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

Flu cases are surging this winter—this season is no joke. New data from the Centers for Disease Control and Prevention ...

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 ...

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.

Data collected by the CDC from labs found 31.6% of tests last week were positive for influenza, close to double the 18.2% at last season's peak. The CDC says that most states are at "high" or ...

(NEXSTAR) – The flu is spreading far and wide across the U.S. – and influenza A is largely to blame. Of all the flu tests reported to the Centers for Disease Control and Prevention since the start of ...