How Long Does Norovirus Last?

©  Duncan Hull
Norovirus is a highly contagious virus, and individuals can be exposed to Norovirus by consuming food or water that is contaminated with the virus.  It can also be passed on by close contact with someone who is infected. Once an individual is exposed to Norovirus, he or she will usually begin showing symptoms of Norovirus illness—including abdominal pain, diarrhea, and vomiting—24 to 48 hours...