You can get norovirus from: Having direct contact with an infected person Consuming contaminated food or water Touching contaminated surfaces and then putting your unwashed hands in your mouth. Norovirus Symptoms. The most common symptoms are: Diarrhea Vomiting Nausea Stomach pain.
Prevent Norovirus. Protect yourself and others from norovirus: Wash your hands often Rinse fruits and vegetables Cook shellfish thoroughly Stay home when sick and for two days after symptoms stop Avoid preparing food for others when sick and for two days after symptoms stop. Trends and Outbreaks. Noroviruses are difficult to kill off because they can withstand hot and cold temperatures and most disinfectants. For most people, norovirus infection usually clears up within a few days and isn't life-threatening.
But in some people — especially children, older adults and people with compromised immune systems — norovirus infection can cause dehydration.
Norovirus infection can cause severe dehydration, malnutrition and even death, especially in people who are older or immunocompromised, or in women who are pregnant. Children who are dehydrated might cry with few or no tears.
They might be unusually sleepy or fussy. Norovirus infection is highly contagious, and anyone can become infected more than once. To help prevent its spread:. Mayo Clinic does not endorse companies or products. Advertising revenue supports our not-for-profit mission. This content does not have an English version. Learn what you can do to prepare, serve and store food safely. Protect others if you are experiencing diarrhea!
Anyone with a diarrheal illness should avoid swimming in public pools or lakes, sharing baths with others, and preparing food for others.
Young children children in diapers that are experiencing diarrhea should not be allowed to go swimming or attend daycare. What are the symptoms? How long does it last? How is it spread? People become infected with norovirus by: Eating food or drinking liquids contaminated by an infected person. Eating uncooked shellfish that has been harvested from contaminated waters.
It is possible to develop immunity to protection against specific types. But, it is not known exactly how long immunity lasts. This may explain why so many people of all ages get infected during norovirus outbreaks. Also, whether you are susceptible to norovirus infection is also determined in part by your genes. Learn how norovirus spreads from person to person and through contaminated food, water, and surfaces. Learn steps you can take to help protect yourself and others from getting infected with and sick from norovirus.
Norovirus is sometimes called the stomach flu or stomach bug.
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