Once norovirus is circulating, it can quickly become an outbreak.

Norovirus is ripping across Northern California as dozens are falling sick with horrific symptoms. The “extremely contagious” virus is sweeping over western San Francisco, Marin, Novato, Palo Alto, ...

Here’s what upper stomach pain is, what commonly causes it and when to seek care.

More than 150 people were sickened by a norovirus outbreak while on a Caribbean cruise.

To date, there are no approved vaccines or antiviral treatments for human norovirus, the leading cause of acute gastroenteritis outbreaks worldwide with more than 685 million infections each year.

A total of 16 pupils and two teachers at MapleBear Kids Adventure Place in Eunos have fallen ill, with the pre-school chain’s chief executive saying that stomach flu is the likely cause.

The FDA recalls raw oysters and Manila clams distributed in multiple states over possible norovirus contamination linked to stomach flu illness.

More than 150 people aboard a recent Princess Cruises voyage became ill, and norovirus is believed to be the cause. (AP Photo) ...

A total of 16 pupils and two teachers from MapleBear Kids Adventure Place in Eunos have fallen ill in recent days, with the ...

Norovirus—the “winter vomiting bug”—is responsible for millions of cases of vomiting and diarrhea each year.

A harvest of manila clams has been recalled from Georgia businesses for possible norovirus infections. Which harvest? What are the symptoms?

Ah, the classic signs of winter: Freezing temperatures, icy roads and calling in sick. It's no secret that winter is a time when illness is prominent. Coughs, colds and viruses are easily spread this ...