Norovirus is a very contagious virus that causes vomiting and diarrhea. It is sometimes called the "stomach flu" or the "stomach bug." However, norovirus illness is not related to the flu.

stomach pain, body ache, headache and fever. Most norovirus outbreaks occur when people who are already infected spread the virus to others by direct means, such as through sharing food or eating ...

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.

CDC Share After Wednesday’s holiday festivities, did anyone in your home wake up with a stomach bug ... related illness outbreaks are from the virus. The virus spreads easily and quickly ...