Rotavirus is one of the main pathogens causing diarrhea in infants and young children. It mainly infects the epithelial cells of the small intestine, thus causing cell damage and diarrhea. The course of the disease is generally about 7 days, with fever lasting 2-3 days, vomiting for 2-3 days, diarrhea for 5 days, and in severe cases, dehydration symptoms and electrolyte disorders may occur. 1. Judgment method of rotavirus infection cure 1. Judgment according to clinical performance If there is no fever, vomiting, diarrhea, etc., and the child’s stool and mental appetite are normal in all aspects, rotavirus can be considered cured. 2. Judgment according to clinical examination Check whether there is rotavirus antigen antibody in the stool, if not, the examination result is negative, indicating that rotavirus has been cleared from the body, rotavirus infection has been cured. Prevention of rotavirus infection 1. Prevent colds and flu, avoid upper respiratory tract infections, and reduce the number of children going outdoors and to crowded places; 2. Ensure good indoor ventilation and a clean and tidy living environment to avoid cross-infection; 3. 4, timely vaccination against rotavirus, the prevention rate can be more than 75%.