Infectious diseases to be prevented in spring include influenza, measles, chickenpox, hand-foot-mouth disease, and mumps. 1. Influenza: mainly caused by influenza virus, patients will have high fever, headache, body weakness, body aches and other symptoms. Influenza is common in China in winter and spring, and is highly contagious, has a high incidence rate, and is generally susceptible to the disease. 2. Measles: Measles is an acute respiratory infectious disease caused by measles virus infection, which is self-limiting. Usually measles virus is easy to spread through respiratory droplets, and the typical symptoms of the patient are fever, cough and runny nose. 3. Chickenpox: Chickenpox is mainly caused by varicella zoster virus infection, and some patients can be cured by themselves. Chickenpox season is winter and spring, has a strong contagious, mainly through the droplet transmission. 4. Hand, Foot and Mouth Disease: Hand, foot and mouth disease is mainly caused by enterovirus infection, which can occur throughout the year. Hand, foot and mouth disease is mainly transmitted through close contact, respiratory droplet transmission, infants, children are generally susceptible. 5. Mumps: The disease is mainly caused by the mumps virus and is highly prevalent in winter and spring, and is more common in children and adolescents. Mumps can be transmitted through droplets, and patients are prone to parotid gland enlargement, muscle pain, lack of appetite and other symptoms. There are many infectious diseases that need to be prevented in the spring, and people with poor physical condition need to strengthen their life care in the spring, and get vaccinated if necessary to prevent the disease.