Gastroenteritis is incapable of being a infectious diarrhea.
 Transmission can be aerosolized when those stricken with the illness vomit, and can be aerosolized by a toilet flush when vomit or diarrhea is present; infection can follow eating food or breathing air near an episode of vomiting, even if cleaned up
 A person usually develops symptoms of gastroenteritis 12 to 48 hours after being exposed to norovirus

