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Is norovirus contagious?

Page last updated 28 February 2019

Yes, norovirus is very contagious.If you get norovirus, you can shed billions of virus particles in your faeces or vomit. It only takes a few viral particles to make others sick. It is most contagious when an infected person has symptoms and for a few days after.

Sources & Citations

2. Centers for Disease Control and Prevention. Norovirus. Transmission. Available at: (accessed 18 October 2018).

SPANZ.SAPAS.18.10.0371 - Date of preparation November 2018