Norovirus, sometimes referred to as the winter vomiting bug, is the most common cause of gastroenteritis. infection is characterized by diarrhea, vomiting, and stomach pain. blood is not usually present. fever or headaches may also occur. this usually develops 12 to 48 hours after being exposed. recovery typically occurs within 1 to 3 days. complications may include dehydration.. You may continue to shed virus in your feces for up to two weeks after recovery. viral shedding may last several weeks to several months if you have an underlying health condition. some people with norovirus infection may show no signs or symptoms. however, they are still contagious and can spread the virus to others. when to see a doctor. Most norovirus risk models do not include these long-shedding individuals, and may therefore underestimate risk. we reviewed the literature for norovirus-shedding duration data and strati?ed these data into two distributions: regular shedding (mean 14�16 days) and long shedding (mean 105�136 days)..
How long is norovirus contagious? while you can shed the virus for up to 8 weeks, it is less and less infectious over time. in most cases, you can return to work or school after you have been. To avoid spreading the infection, it�s important to understand how long norovirus does last in your body. norovirus can be found in your stool (feces) even before you are aware you have the illness � and the virus can stay in your stool for 2 weeks or more after you feel better.. As long as you�re still shedding the virus in your stool, you can pass it on to others. that�s easy to do because it only takes a small amount of the virus to cause illness..
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