how long does it take to show symptoms of norovirus
Norovirus illness usually begins 12-48 hours after exposure, but can appear as early as 10 hours after exposure.Symptoms usually include nausea, vomiting, diarrhea, and stomach cramping. Sometimes people have a low-grade fever, chills, headache, muscle aches, and a general sense of tiredness.orovirus illness usually begins 12-48 hours after exposure, but can appear as early as 10 hours after exposure.