Spring and summer are the frequent seasons of diseases, especially infectious diseases. Influenza is a common infectious disease. On May 22, the provincial CDC reminded the public that the influenza epidemic season in Hainan Province is generally from November to March, and in some years it lasts until July. Influenza is a highly infectious respiratory disease caused by influenza virus, among which influenza A and B viruses are mainly responsible for human infection and seasonal epidemic. The antigenicity of influenza virus is changeable and spreads rapidly, so we need to pay attention to prevention. Experts from the provincial CDC said that influenza patients and latent infections are the main sources of seasonal influenza. The transmission route of influenza is mainly droplet transmission, and can also be transmitted directly or indirectly through mucous membranes such as mouth, nose and eyes. In schools, kindergartens and elderly care institutions and other crowded places, it is easy to have clustered epidemics. The symptoms of influenza are as follows: sudden onset, high fever, body pain, fatigue, bronchial inflammation and other symptoms, but the respiratory symptoms are mild. After the baby suffers from the flu, he has decreased or no appetite, nausea, vomiting, diarrhea and other manifestations, poor mental state and no energy to play. Experts warn that influenza is not a common cold. Although they both sound or look very similar, the infection of influenza is far stronger than that of the common cold, and it may lead to serious complications and death. How to prevent influenza? In case of flu symptoms, go to the hospital in time. Patients and caregivers need to wear masks to avoid cross infection. Try to avoid going in and out of public places and reduce close contact with people around you. If you really need to go out, you should wear a mask. When sneezing or coughing, cover your mouth and nose with a handkerchief or paper towel to reduce the spread of disease. After flu symptoms, pay attention to self isolation and protection, open windows for ventilation, cover your mouth and nose with paper towels and towels when coughing and sneezing, and wash your hands frequently with soapy water and hand sanitizer. The most effective form of prevention is vaccination, which can significantly reduce the risk of influenza and serious complications. Washing hands frequently is one of the simplest and most important measures to prevent the spread of influenza. Wash hands in time after going out and going home, contacting public goods, sneezing, blowing your nose, touching your mouth, nose, eyes, before and after meals and after defecation. The most direct prevention is to avoid contact with people with influenza like symptoms. Influenza patients are the main source of infection. If someone is infected with influenza at home, it is recommended to isolate as much as possible, especially reduce contact with children and the elderly. In the season of influenza outbreak, try not to go to crowded areas. When you have to go, you'd better wear a medical mask. How do schools prevent and control influenza? Do a good job of morning and afternoon inspection. Students who find flu like symptoms such as fever, runny nose and cough should inform their parents in time and should not go to school. Overwork and strenuous exercise may cause viral myocarditis and even death. Therefore, students must rest at home. Students can resume classes 48 hours after their body temperature returns to normal and other flu like symptoms disappear. Schools should reasonably arrange the make-up classes and make-up exams for students who are absent due to illness, so as to eliminate the concerns of students and parents. Do a good job of cleaning and disinfection. The school should use wet mop to mop the floor every day, and often clean and disinfect the door handle, table and chair surface of the classroom. Clean the air conditioning and central air conditioning ventilation system regularly. If there are sick students in the classroom who have stayed, wipe the tables and chairs of patients with chlorine containing disinfectant (such as 84 disinfectant), wash the rag with running water, and soak it in disinfectant for 30 minutes before reuse. Vaccination, influenza vaccination is an effective measure to prevent influenza. It is suggested that school teachers and students should be vaccinated against influenza every year. (Xinhua News Agency)