According to experts such as Yang Weizhong, deputy director of China Center for Disease Control and Prevention, Li Xingwang, chief physician of beijing ditan hospital, and Qian Suyun, director of ICU room of Beijing Children's Hospital, enterovirus EV7 1 is a kind of human enterovirus, which often causes hand, foot and mouth disease and viral angina in children, and pulmonary edema and encephalitis may occur in severe children, collectively referred to as enterovirus EV7 1 infectious disease.

The disease mostly occurs in children, especially infants under 3 years old, and a few cases are serious, which will lead to death.

The disease is common in preschool children, especially infants under 3 years old, and adults can also be infected. Poor sanitation and food hygiene, and poor personal hygiene habits are easy to get sick. Most cases are mild and can be cured. A few patients may have encephalitis, encephalomyelitis, pulmonary edema and circulatory failure. It may be life-threatening in severe cases.

Enterovirus EV7 1 infection can occur all year round, usually from April to September. The main modes of transmission are: close contact with people is an important mode of transmission, and children are infected by touching hands, towels, handkerchiefs, tooth cups, toys, tableware, milk utensils, bedding and underwear contaminated by the virus; Viruses in patients' throat secretions and saliva can be spread through air (droplets), so close contact with sick children can cause infection; Drinking or eating water or food contaminated by virus can also cause infection.

According to experts, after children are infected with enterovirus EV7 1, they usually start with fever, usually around 38℃. At the same time, fever can cause rashes on the mouth, hands, feet and buttocks, or herpes on the oral mucosa. Some patients have cold-like symptoms such as cough in the early stage. A rash began to appear after a fever 1 ~ 2 days, usually on the palms and soles of the feet, but also on the buttocks. Some children do not have fever, but only have rash on hands, feet and buttocks or herpetic angina, and their condition is mild. Most children's body temperature dropped, the rash subsided and their condition recovered within one week.