Be alert! Highly contagious! The high season of this kind of virus is coming.

Spring is coming, the temperature is rising, and the hand, foot and mouth disease is about to enter the high incidence season, so the risk of cluster epidemic in crowded places such as schools and kindergartens is increasing. China CDC reminds parents and teachers to pay more attention to the symptoms of children’s hands, feet, mouth and other parts, and see a doctor in time if they find abnormalities. How to prevent hand, foot and mouth disease? Let’s watch it with Xiaobian

Hand, foot and mouth disease season is coming.

How should we prevent it?

1. What is hand, foot and mouth disease?

Hand-foot-mouth disease (HFMD) is a common acute infectious disease in children aged 5 and under caused by various enteroviruses. It can occur all year round, with the peak in spring and summer from April to July and the peak in autumn from September to November. The main pathogenic serotypes include Coxsackievirus A groups 4 ~ 7, 9, 10 and 16 (CVA4 ~ 7, 9, 10 and 16) and Coxsackievirus B groups 1 ~ 3 and 5 (CVB1 ~ 3 and 5), some serotypes in echovirus and enterovirus 71 (EV-A71). In the past, EV-A71 and CVA16 were the main pathogens. At present, CVA6 has become another major common pathogen after CVA16 and EV-A71. The symptoms of hand, foot and mouth disease rash caused by CVA6 infection are different from those caused by traditional virus infection, and some patients have a wide range of skin lesions. EV-A71 is still the main pathogen causing severe hand-foot disease and death.

2. What are the symptoms of hand, foot and mouth disease?

It takes about 2-10 days from infection to symptoms, with an average of 3-5 days. Most of the clinical manifestations are fever, herpes in oral mucosa, maculopapules and herpes on hands, feet and buttocks, which may be accompanied by symptoms such as cough, runny nose and loss of appetite. Children usually have mild symptoms and are self-limited, and generally have a good prognosis. They can fully recover after 7-10 days. The condition of a few critically ill children will deteriorate rapidly, with neurological complications and multiple organ failure, which can lead to death in severe cases. A small number of patients infected with CVA6 and CVA10 may have symptoms of nail loss 2-4 weeks after illness.

3. How is hand, foot and mouth disease spread?

Patients and recessive infected people are the sources of infection of hand, foot and mouth disease, and the proportion of recessive infection is large. Patients are contagious before onset, usually within 1 week after onset.

The route of transmission is diverse and easy to realize. The main mode of transmission is close contact, and infection is caused by direct contact with patients’ feces, herpes fluid, nasopharyngeal secretions and saliva, and contact with contaminated hands, towels, handkerchiefs, toothcups, toys, tableware, bottles, bedding and other items or environment. It can also spread through respiratory droplets, such as coughing and sneezing; Drinking or eating water and food contaminated by virus can also be infected.

4. How to prevent hand, foot and mouth disease?

(1) Avoid contact with children. Try not to hug, share toys, share tableware, toiletries, etc. with children to prevent cross infection.

(2) Maintain hand hygiene. Good hand hygiene is an effective measure to prevent hand, foot and mouth disease. Children should clean their hands after touching public goods, after going out to play, before eating, after going to the toilet, and after parents and caregivers go home, before processing food, after changing diapers or handling items contaminated by feces. Usually, you can wash your hands with soapy water or hand sanitizer. After contacting patients and pollutants, you should choose a chlorine-containing disinfectant with appropriate concentration to wash your hands.

(3) reduce aggregation. Crowd gathering and frequent contact are easy to spread hand, foot and mouth disease. It is suggested that children should not be taken to public places with crowded people and poor air circulation during the epidemic period of hand, foot and mouth disease.

(4) The environment is ventilated. Closed public places and rooms should be ventilated frequently to maintain air circulation.

(5) Cleaning and disinfection. Regular cleaning and disinfection of frequent contact parts, daily necessities and children’s toys; Milk utensils, tableware, etc. should be boiled and disinfected; Clothes and bedding are often dried in the sun or disinfected by ultraviolet light.

(6) vaccination. Although EV-A71 vaccine can not prevent other enterovirus infections, it can effectively prevent hand, foot and mouth disease and other related diseases caused by EV-A71 infection, and reduce the occurrence of severe hand, foot and mouth disease and death. In order to play a protective role as early as possible, children are encouraged to complete the whole vaccination before the age of 12 months. Vaccination is not recommended for children over 5 years old.

Source/Guan Wei, Anhui Provincial Department of Education

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Original title: "Be alert! Highly contagious! The high season of this kind of virus is coming. "

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