How Long Does Norovirus Last?

Diarrhea, stomach pain and vomiting typically begin 12 to 48 hours after exposure. Norovirus symptoms usually last one to three days, and most people recover completely without treatment.

Can norovirus last longer than 3 days?

For most healthy people, norovirus symptoms last 1 to 3 days. But for some, the virus can remain in the intestines for weeks or months and cause lingering inflammatory bowel problems, according to a 2018 report published in the journal Science.

How long are you contagious from norovirus?

With norovirus — the most common cause of viral gastroenteritis in adults — you're contagious when you begin to feel ill. Symptoms usually appear within one to two days of exposure. Although you typically feel better after a day or two, you're contagious for a few days after you recover.