Symptoms usually develop between 12 to 48 hours after a person is exposed to norovirus. It is also possible for someone to never show symptoms of the virus but still be contagious. The most common symptoms include diarrhea, vomiting, nausea and stomach pain. Less common but still possible are fever, headache and body aches.

Norovirus, also known as the stomach bug, is spreading across the U.S. Here's what to know about the contagious virus and how best to prevent an infection.

It's no secret that winter is a time when illness is prominent. Coughs, colds, and viruses are seemingly running rampant this time of year. This is thanks to the drier air and an influx of time spent indoors,