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

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

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.

More than 24 million people have had seasonal flu this season, according to estimates from the Centers for Disease Control ...

Aerospace startup Boom says they've proven quiet supersonic flight is possible with their passenger airplanes after a successful second test flight. Dallas Cowboys star Dak Prescott tells Fox News ...

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

A dairy worker in Nevada was infected with a new type of bird flu that’s different from the version that has been spreading ...

Respiratory illnesses have left thousands of Kentuckians sick and others dead. Here are the latest numbers and what you can do to say healthy.

Testing results from patients indicate that two strains of seasonal flu that are causing most illnesses — a Type A H1N1 and a ...