This article was originally posted in the WCM newsroom
Norovirus is a common cause of the “stomach flu”—not to be confused with the flu itself, says Dr. Melanie Dubois, a specialist in pediatric infectious diseases and an Assistant Professor in Pediatric Infectious Diseases at Weill Cornell Medicine.
Norovirus infections in the New York Metropolitan Area appear to be high this year, Dr. Dubois says. The virus tends to peak between November and April, so we’re still in norovirus season, with an increase in emergency room visits for vomiting and diarrhea in the area.
The virus mainly causes vomiting and watery diarrhea, but in some patients, it may also cause nausea, fever, body aches and stomach pain. Norovirus infection comes on quickly—just 1 to 2 days after exposure—and its symptoms typically ease within 2 to 3 days.
How contagious is norovirus?
Norovirus is very contagious. You can catch it by:
- coming into direct contact with an infected person (via vomit or stool)
- consuming contaminated food or water
- touching contaminated surfaces at home, on public transportation or in restaurants
And you can continue to spread it to others for 2 weeks or more after your symptoms clear.