Norovirus is a highly contagious virus that causes gastroenteritis, or what is commonly known as the “stomach flu.” It is the leading cause of foodborne illness in the United States, responsible for over 50% of all foodborne-related outbreaks. Norovirus is very contagious and can spread quickly in places where people are in close contact, such as nursing homes, schools, and cruise ships.
Norovirus is most often spread through contaminated food and water, though it can also be spread through contact with an infected person or by touching a contaminated surface. Symptoms can appear anywhere from 12 to 48 hours after exposure and usually last for 1 to 3 days. Symptoms of norovirus include nausea, vomiting, diarrhea, abdominal pain, headache, chills, and muscle aches.
The most effective way to prevent the spread of norovirus is to practice good hygiene. Wash your hands often with soap and water, especially after using the bathroom, changing diapers, and before eating. Avoid close contact with those who are sick, and clean and disinfect contaminated surfaces. If you become ill with norovirus, it is important to stay home and avoid contact with others until at least 48 hours after your symptoms have gone away.