According to CDC data, this is the highest rate of flu ever recorded since the 1997-1998 flu season.

The worst respiratory illness season in over a decade is hitting Pennsylvania and the country. Here's why everyone is getting sick this winter.

If it seems like everyone around you is getting sick recently, it’s not your imagination. This is the worst flu season in more than a decade, and it’s only the tip of the iceberg, as experts say cases ...

Flu cases are surging across the country and here in the Philadelphia region, where doctors say cases could be growing because of so many people were celebrating the Eagles at Super Bowl parties, ...

The U.S. is in a severe flu season, and antiviral medications such as Tamiflu can help if you get sick—but it's not recommended for everyone. Here's what you need to know about the medication.

Both the Finnish and the U.S. bird flu vaccines are made by CSL Seqirus but are different vaccines. In the summer, U.S. officials stockpiled 4.8 million doses of the vaccine that officials said was ...

February is typically the peak of flu season, but this year, hospitalizations from the flu hit a 15-year peak, according to ...

Flu cases are surging across the country and here in the Philadelphia region, where doctors say cases could be growing because of so many people were celebrating the Eagles at Super Bowl parties ...

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

It's flu season right now, and the U.S. is in the midst of a wave that's straining hospitals. But not all influenza is the same.

Flu cases are at their highest level in 15 years, according to federal health officials. Stephanie Stahl reports.