Norovirus Questions & Answers

What is norovirus?
Norovirus is the name given to a group of viruses that cause an intense gastrointestinal illness. The symptoms of norovirus infection usually include nausea, vomiting, diarrhea and some stomach cramping. Sometimes people also have low-grade fever, chills, headache and a general sense of tiredness.
How do people become infected with noroviruses?
Norovirus infections are extremely contagious. People can become infected in several ways including:

  • eating food or drinking liquids that are contaminated with norovirus
  • touching surfaces or objects contaminated with norovirus and then touching their mouths or eating
  • having direct contact with other people who are infected, or who have recently had norovirus infection
How long does the illness last? How long are people contagious?
The acute symptoms of norovirus infection last from between one to three days in most people. People infected with norovirus begin being contagious when they develop symptoms. They continue to be contagious for at least three days after all their symptoms disappear.
What treatment is available for people with norovirus infection?
Since norovirus is a viral illness, it cannot be treated with antibiotics as antibiotics are only effective usually against bacterial illnesses. Currently there is no antiviral medication that works against norovirus. Because dehydration from loss of fluids through vomiting and diarrhea is the most serious health effect resulting from norovirus, treatment includes drinking plenty of clear fluids to prevent dehydration. Although it is not usually necessary for people to see a health care provider, they should call to discuss their symptoms and how best to manage them. People who experience dizziness or lightheadedness while standing should definitely contact a health care provider.
If I have norovirus, how can I avoid spreading it to others?
To avoid infecting others while you are ill, it's advisable to stay away from places where people gather (e.g., classes, dining hall) and to be extremely careful about handwashing, especially after using the bathroom. Remember, these precautions should be taken not only while you have acute symptoms, but for at least three days after your symptoms disappear.
When can I return to my normal activities?
You may return to your normal activities once you no longer have symptoms. Health care workers and food handlers should NOT return to work for 72 hours after symptoms have resolved.
How can I decrease my chances of getting norovirus?
You can decrease your chance of coming into contact with norovirus by following these preventive steps:

  • WASH YOUR HANDS FREQUENTLY especially after using the bathroom and before eating or preparing food; use soap and water or antiseptic hand cleaners. To prevent illness it's necessary to wash your hands for about 20 seconds; don't forget the tips of your fingers.
  • Don't share glasses, plates or cooking utensils
Resident and commuter students who develop symptoms should:
  • Contact the Health Center (617-521-1020) during business hours (9:00 a.m. — 5:00 p.m. Monday - Friday) or Simmons Public Safety (617-521-1112) when the Health Center is closed to report illness and for advice
Faculty and staff who develop symptoms should:
  • Please contact your manager, who will contact HR (617-521-2084) or email: so that we can best track the number of cases
  • If you are sick in a bathroom on campus, please contact Public Safety (617-521-1112) who will arrange to have the bathroom cleaned
  • Contact your healthcare provider if you think you are becoming dehydrated or have any other concern