What is Nororvirus?

Noroviruses are a group of related viruses that affect the stomach and intestines and cause an illness called gastroenteritis (GAS-tro-en-ter-I-tis). The illness often begins suddenly. You may feel very sick, with stomach cramping, vomiting, and/or diarrhea. People are contagious from the moment they begin feeling sick until at least 3 days after they recover.

Noroviruses spread easily from contaminated surfaces. There is no vaccine to prevent norovirus infection and no drug to treat it. Wash your hands often and follow simple tips to stay virus-free. For more on prevention and treatment, check the CDC website…