About Norovirus

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Twenty-five crew members and 152 of the 2,144 passengers onboard the 2023 voyage of the Celebrity Summit recently reported norovirus symptoms.

About Norovirus:

  • It is a common and very contagious virus.
  • It causes nausea, vomiting and diarrhea.
  • It is also sometimes referred to as the ‘stomach flu’ or the ‘ winter vomiting bug’.
  • People of all ages can get infected and sick with norovirus , which spreads very easily and quickly.
  • You can get norovirus illness many times in your life because there are many different types of noroviruses.
  • Transmission:
    • They commonly spread through food or water that is contaminated during preparation or through contaminated surfaces. 
    • Noroviruses can also spread through close contact with a person who has norovirus infection.
  • Symptoms:
    • The initial symptoms of norovirus are vomiting and/or diarrhoea, which show up one or two days after exposure to the virus.
    • Patients also feel nauseous, and suffer from abdominal pain, fever, headaches and body aches.
    • In extreme cases, loss of fluids could lead to dehydration.
  • Treatment:
    • No vaccines are currently available to prevent norovirus. Treatment for the infection focuses on relieving your symptoms.
    • It is important to maintain hydration in the acute phase. In extreme cases, patients have to be administered rehydration fluids intravenously.


Q1) What is a Virus?

A virus is an infectious microbe consisting of a segment of nucleic acid (either DNA or RNA) surrounded by a protein coat. A virus cannot replicate alone; instead, it must infect cells and use components of the host cell to make copies of itself. Often, a virus ends up killing the host cell in the process, causing damage to the host organism.

Source: 177 sickened with norovirus on the Celebrity Summit. Gastrointestinal illness outbreaks on ships are on the rise this year.