Norwalk virus

Norwalk virus, also known as Norovirus, is a highly contagious virus that causes gastroenteritis in humans. The virus is named after the city of Norwalk, Ohio, where an outbreak occurred in 1968. Norovirus is the most common cause of acute gastroenteritis in the United States.

Symptoms

The symptoms of Norwalk virus include nausea, vomiting, diarrhea, and stomach pain. Some people may also experience fever, headache, and body aches. Symptoms usually begin 12 to 48 hours after exposure to the virus and last for 1 to 3 days.

Transmission

Norwalk virus is transmitted through the fecal-oral route, either by consuming contaminated food or water, or by direct contact with an infected person. The virus can also be spread through aerosolized particles when an infected person vomits.

Prevention

Prevention of Norwalk virus involves proper hand hygiene, especially after using the toilet and before eating. It is also important to disinfect surfaces that may have been contaminated with the virus.

Treatment

There is no specific treatment for Norwalk virus. Treatment involves managing symptoms, such as staying hydrated to prevent dehydration.

See also

• Gastroenteritis
• Viral gastroenteritis
• Foodborne illness

Norwalk virus Resources
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