诺如病毒英文版

     

     

      Norovirus is also known as Norwalk-like virus or small round structured virus SRSV. It causes acute gastroenteritis (vomiting and diarrhea).

     

      Persons can acquire the infection from:

     

      Food or water contaminated by infected food handlers or at its source e.g. shellfish.

     

      Person to person spread occurs via direct and indirect contact with faeces and vomitus.

     

      Contaminated environment (e.g. toilet, swimming pool) can be a major source of outbreak.

     

      Aerosol from contaminated environment or projectile vomiting.

     

      After exposure to the virus, there will be an incubation period of 24-48 hours.

     

      Then, the following symptoms will occur:

     

      Vomiting (predominant early symptom)

     

      Abdominal pain

     

      Watery diarrhea

     

      Fever (low-grade, not present in all cases)

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