Norovirus infection may cause various symptoms such as diarrhea, vomiting, nausea, abdominal pain, and other symptoms such as fever and chills. Norovirus is a virus of the genus Norovirus in the family Cuprioviridae, which mainly infects preschool children, but also infects adults. Norovirus infections are usually more prevalent in the cold season, and there is no specific vaccine. Patients infected with norovirus will mainly experience digestive symptoms, mainly diarrhea and vomiting, followed by nausea, abdominal pain, headache and other symptoms. In addition, patients may also experience fever, chills and muscle aches. Norovirus infection will appear a variety of symptoms, norovirus mutation fast, strong environmental resistance and shorter incubation period, the speed of transmission. Patients infected with norovirus should go to the hospital in a timely manner, under the guidance of the doctor to take treatment measures, do not delay treatment.