Cases of norovirus, also known as the stomach flu, are surging across the United States as the new year begins. The highly ...

If you’re unlucky enough to encounter this virus, here’s what you need to know to get through the next few days.

Health experts are warning of a 'quad-demic' this winter, as four viral infections spread simultaneously in the UK and US.

Norovirus, a common stomach bug sometimes called the ‘winter vomiting virus,’ is surging in the US. CNN’s Dr. Sanjay Gupta shares what he knows about the outbreaks and what you can do to keep from ...