Norovirus Infection
Overview
Causes
A group of viruses cause this infection. They can spread through:
- Water that is not clean, such as lakes, swimming pools, wells, and water stored on cruise ships
- Raw or poorly steamed shellfish, such as clams and oysters
- Food and drinks made by food handlers who have the infection and do not wash their hands well after using the bathroom
- Surfaces, such as a door knob
The viruses can also spread by being around someone who is sick.
SymptomsandDiagnosis
Symptoms
Problems may be:
- Nausea
- Vomiting
- Diarrhea
- Belly pain
- Fever
These signs often appear within 24 to 48 hours of getting the virus. They often last about 2 to 3 days.
Treatments
Treatment
Viral infections cannot be treated with antibiotics. The infection will go away on its own. Symptoms can be managed with:
- Supportive care, such as drinking plenty of fluids
- Medicines to ease pain, such as acetaminophen
This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.
Edits to original content made by Denver Health.
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