Norovirus is mainly transmitted through the fecal-oral route. To prevent and control norovirus infection, attention should be paid to food and water hygiene, as well as the disinfection and cleaning of secretions. Norovirus is a virus that can be transmitted by the digestive tract, and there may be a large amount of norovirus in the vomit and feces of people infected with norovirus. If such secretions are not cleaned up in time and enter the human body through the fecal orifice, it may cause the body to be infected with norovirus, and the vast majority of people are susceptible to norovirus. Norovirus is easily transmitted through unclean food and water, therefore, for the prevention of norovirus, it is very important to ensure good diet and drinking water conditions to prevent norovirus infection of food and water. In addition, timely hand washing before and after meals can effectively prevent norovirus infection. For prevention and control of norovirus, please consult a medical professional.