Viral diarrhea can be infectious for a long time.
D000328:Adult; D017250:Caliciviridae Infections / Q000150:complications* / Q000453:epidemiology; D002648:Child; D003967:Diarrhea / Q000453:epidemiology / Q000821:virology*; D005243:Feces / Q000821:virology; D005759:Gastroenteritis / Q000453:epidemiology / Q000821:virology*; D006801:Humans; D029322:Norovirus; D017201:Virus Shedding