In summer, the main thing is to pay attention to hand hygiene and keep the disease from the mouth. Eliminate flies, mosquitoes, rats, cockroaches and other four pests, pay attention to clean indoor air and frequent ventilation. Summer common infectious diseases, the main hand, foot and mouth disease, the prevalence of children, it is an infectious disease caused by intestinal viruses, children with the disease after the hand, foot and mouth rash. Prevention measures mainly pay attention to hand hygiene, pay attention to the affected children as little as possible to public places, pay attention to the cleanliness of the affected children’s hands. Infectious diarrhea is common in summer, including bacterial and viral infectious diarrhea, which also comes from the mouth, so we should pay attention to washing hands before and after meals, eating as little cold food as possible, and not eating food bitten by flies and so on. Epidemic hemorrhagic fever is also common in summer, which is a natural epidemic caused by rodents carrying hantavirus, and its infectious and parasitic host is the wild blackline gopher. Therefore, we should pay attention to the control and elimination of rats and mice to reduce the occurrence of infectious diseases. Brucellosis is also prevalent in summer, caused by human contact with diseased livestock or pollutants, attention should be paid to strengthen the management of livestock, sick and dead livestock should be buried deeply or burned, not to be eaten, raw and cooked food at home should be separated, do not eat raw meat and semi-cooked meat, raw fish, etc.