Norovirus Topic Guide
Norovirus: Infection with norovirus causes symptoms like vomiting, nausea, diarrhea, and abdominal cramping. Symptoms and signs usually begin within 12-48 hours after initial contact with the virus. The infection is self-limiting, so medical treatment is usually unnecessary. However, if the infected individual is unable to rehydrate, it may be necessary to seek medical care to avoid dehydration.
Most cases of diarrhea can be treated at home. In some cases (in the elderly, small children, or those with severe or chronic medical conditions) may need to be hospitalized due to dehydration.
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