How long are people contagious?

People infected with norovirus are contagious from the moment they begin feeling ill to at least 3 days after recovery. Some people may be contagious for as long as 2 weeks after recovery. Therefore, it is particularly important for people to use good handwashing and other hygienic practices after they have recently recovered from norovirus illness.

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1. What are noroviruses?
2. What are the symptoms of illness caused by noroviruses?
3. What is the name of the illness caused by noroviruses?
4. How serious is norovirus disease?
5. How do people become infected with noroviruses?
6. When do symptoms appear?
7. Are noroviruses contagious?
8. How long are people contagious?
9. Who gets norovirus infection?
10. What treatment is available for people with norovirus infection?
11. Can norovirus infections be prevented?