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The Norwalk Virus (now known as noroviruses) has been the bane of cruise lines in the last year.  Read our article to find out  how to avoid the Noroviruses and what to expect if you do not observe our recommendations.


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Travel Advice/Travel Tips -  Noroviruses and cruise ships

Noroviruses are a group of viruses (previously known as Norwalk-like viruses) that can affect the stomach and intestines.

  • These viruses can cause people to have gastroenteritis, an inflammation of the stomach and the large intestines.
  • Gastroenteritis is sometimes called a calicivirus infection or food poisoning, even though it may not always be related to food.
  • Norovirus is sometimes called the “stomach flu,” although it is not related to the flu (a common respiratory illness cause by the influenza virus).
  • This illness often begins suddenly, and the infected person may feel very sick.

Normally the illness lasts about 1 to 2 days. Children often vomit more than adults.

   Symptoms caused by noroviruses

 Common Symptoms: vomiting, diarrhea, and some stomach cramping

  • Less common symptoms: low-grade fever, chills, headache, muscle aches, nausea, and tiredness

Where noroviruses are found

  • Noroviruses are found in the stool or vomit of infected people and on infected surfaces that have been touched by people ill with the virus.
  • Outbreaks occur more often where there are more people in a small area, such as nursing homes, restaurants, catered events, and cruise ships.

 Reasons why noroviruses are associated with cruise ships

  • Health officials track illness on cruise ships. Therefore, outbreaks are found and reported more quickly on a cruise ship than on land.
  • Close living quarters may increase the amount of group contact.
  •  New passenger arrivals may bring the virus to other passengers and crew.

How noroviruses are spread

 People can become infected with the virus by:

  • Eating food or drinking liquids infected with noroviruses
  • Touching surfaces or objects infected with noroviruses and then touching own mouth, nose, or eyes
  • Having person-to-person contact (with a norovirus-infected person) by
    • being present while someone is vomiting
    • sharing food or eating from the same utensils
    • caring for a sick person
    • shaking hands
  •  Not washing hands after using the bathroom, changing diapers, and before eating or preparing food.


 Norovirus infections are not usually serious

  •  Noroviruses are highly contagious, but infections are not usually serious.
  •  People may feel very sick and vomit often or get diarrhea, becoming dehydrated if lost liquids are not replaced.
  •  Most people recover within 1 or 2 days and have no long-term adverse health effects.

 What to do if you get a norovirus

  •  Advise the medical staff of your illness. Drink plenty of fluids. Wash hands often.

 How to prevent getting and spreading noroviruses

  •  Wash hands often.
  •  Wash hands after using the bathroom, changing diapers, and before eating or preparing food.
  •  Wash hands more often when someone in your home is sick.
  •  For hand washing tips, see our articles on hand washing and keeping those hands clean.
  •  Avoid shaking hands during outbreaks.
  •  Use alcohol-based hand sanitizer along with hand washing.

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