Rotavirus is one of the main pathogens causing diarrhea in infants and children and is the leading cause of diarrhea in infants and children under 5 years of age. Infection with rotavirus most often presents with digestive symptoms, and patients often have a predominantly yellow, watery stool with no mucus or pus or blood. Patients have diarrhea up to about 10 times a day, or up to 20 times a day, often accompanied by other digestive symptoms such as nausea, vomiting, abdominal pain, general malaise and lethargy, and some patients can also develop fever. The disease has a relatively short course and is self-limiting. At present, for rotavirus infection caused by diarrhea, there is no special antiviral drugs, mainly to take active symptomatic treatment, antibacterial drug treatment is not effective, prevention of this disease must strengthen dietary hygiene, to prevent water or food contaminated by the virus.