Seasonal flu and norovirus are circulating right now. But which illness do you have? Doctors share what to look for when ...

As we get deeper into flu season, a new type of the influenza virus has been identified, the Centers for Disease Control and Prevention confirms.

The flu can also cause a general feeling of fatigue or malaise, Ray says, as well as gastrointestinal issues like diarrhea ...

This year's version of H3N2 has experts on alert. It's a mutated version, subclade K, that may weaken the vaccine's ...

ANSWER: Both colds and influenza (the “flu”) are respiratory illnesses that are caused by viruses. Influenza is caused specifically by the influenza viruses, which come in two main types (A and B).

Scientists have discovered that avian influenza viruses have a gene that makes them incredibly resistant to heat, rendering ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. "The flu," or seasonal influenza, is caused by influenza viruses, like those pictured above. | ...

It's currently starting to hit the United Kingdom and is also popping up in Canada and Japan.

Bird flu viruses are a particular threat to humans because they can replicate at temperatures higher than a typical fever, ...

The experimental mRNA vaccine prevented 60% to 67% of flu infections, while the conventional vaccine prevented 44% to 54% of ...

A study uncovers the viral gene that lets bird flu beat fever, reshaping surveillance strategies as H5N1 continues to spread.

The MDHHS states increased influenza cases in Michigan could signal an early start to the flu season.