What is the stomach flu going around? What to know about norovirus, symptoms to watch for
Symptoms usually develop between 12 to 48 hours after a person is exposed to norovirus. It is also possible for someone to never show symptoms of the virus but still be contagious. The most common symptoms include diarrhea, vomiting, nausea and stomach pain. Less common but still possible are fever, headache and body aches.