What month is norovirus most common?

Norovirus outbreaks occur throughout the year but are most common from November to April. Most outbreaks occur when infected people spread the virus to others through direct contact, such as by caring for them or sharing food or eating utensils with them. Learn about common settings of norovirus outbreaks.



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Is norovirus airborne? Norovirus is most commonly spread by direct contact with contaminated feces or vomit. However, airborne transmission of viral particles has been reported. More than 30 million norovirus particles can be spread throughout the air during an episode of vomiting.

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Norovirus causes an acute illness that commonly lasts 1 to 2 days for most people, although some people may be ill or feel the effects for up to 6 days. After the period of illness your body gradually gets rid of the entire virus. Norovirus is not known to create a long term 'carrier' state in a person.

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