Influenza cases continue to mount with the virus reaching activity levels in the U.S. not seen for the last 15 years, according to the Centers from Disease Control and Prevention.

Partial CDC data suggest that influenza deaths may have already reached as high as 2% of deaths for the week ending on Feb. 1 ...

Doctor's visits for flu symptoms are at a 15-year high. Why is this flu season so bad? Doctors discuss flu severity, symptoms and how to stay safe.

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 infections are at or near their highest levels in at least 15 years and are still rising, the Centers for Disease Control and Prevention says.

What you need to know about bird flu. Public health experts are closely watching avian influenza, which has affected chickens ...

(NEXSTAR) – The map of flu activity across the United States continues to darken, both figuratively and literally, as case ...

HEALTH OFFICIALS IN NEW HAMPSHIRE SAY FIVE PEOPLE HAVE DIED FROM THE FLU SO FAR THIS SEASON, AS WE’VE BEEN REPORTING. AS YOU PROBABLY NOTICED IN YOUR DAILY LIFE, THE STATE IS SEEING HIGH NUMBERS OF ...

The information was not reported as it usually is by the CDC, in a weekly breakdown of flu activity called FluView, but was added to a section that focuses on respiratory illnesses in general. Trends ...

The information was not reported as it usually is by the CDC, in a weekly breakdown of flu activity called FluView, but was added to a section that focuses on respiratory illnesses in general.