Norwalk viruses

Definition

Norwalk viruses, also known as noroviruses, are a group of highly contagious viruses that cause gastroenteritis, leading to inflammation of the stomach and intestines. They are a common cause of foodborne illness outbreaks.

5 Must Know Facts For Your Next Test

1. Norwalk viruses are primarily transmitted through contaminated food or water and person-to-person contact.
2. Symptoms of Norwalk virus infection include nausea, vomiting, diarrhea, and abdominal pain.
3. The incubation period for Norwalk viruses is typically between 12 to 48 hours after exposure.
4. Norovirus infections are usually self-limiting and last about 1 to 3 days.
5. Prevention strategies include proper hand hygiene, disinfecting surfaces, and avoiding contaminated food or water.

Review Questions

• What is the primary mode of transmission for Norwalk viruses?
• List at least three symptoms associated with Norwalk virus infection.
• How long does a typical Norwalk virus infection last?

Related terms

Gastroenteritis: Inflammation of the stomach and intestines causing symptoms like vomiting and diarrhea.

Foodborne Illness: Diseases caused by consuming contaminated food or beverages.

Viral Shedding: The release of virus particles from an infected individual into the environment.