The CDC reported over double the cases of norovirus, commonly known as stomach flu, as the peak of the virus' season begins.

The best way to get through the stomach flu is to rest, stay hydrated and listen to your body, said Dr. Paul Sax, clinical ...

But this time of year, another virus typically increases in spread, and causes more unpleasant, if short-term, symptoms. Here's what you need to know about norovirus, or the stomach flu.

Norovirus is sometimes called the stomach bug. The virus causes symptoms like stomach pain, vomiting and diarrhea.

During the week of Dec. 5, the CDC reported 91 cases of norovirus, more commonly known as the stomach flu ... infected with the virus will typically experience the symptoms suddenly.

A nasty stomach bug has been spreading across the country, including California, in recent months — leaving people feeling nauseous, achy or worse.