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.

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

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

Dr. Jessica Lazerov a pediatrician at Children’s National said even if a child has had the flu, she still recommends getting the flu shot after they’ve recovered.

The flu season has reached high levels, with 3,600 children testing positive in the past week across the Norton Children's System.

Flu activity remains “very high” in most states, the Centers for Disease Control said this week, as illnesses, emergency room visits and hospitalizations all continue to trend upward.

Schools around the U.S. are closing due to surges of flu and other illnesses which are sickening students and staff. Here's what parents need to know.

Illinois is reporting a "notable" increase in emergency department visits and hospital admissions for the flu. Doctors say it's not too late to get vaccinated.

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 ...

The progression of the species-jumping disease has been unprecedented, including the first-ever U.S. cases of infections in ...

Learn about respiratory viruses during viral season and how to stay safe. Dr. Matthew Muller discusses COVID-19, RSV, influenza, and more.