Influenza vaccination can prevent you from getting influenza, and the best time to get the flu vaccine is recommended in China from September to November each year. The flu vaccine is composed of antigens with the influenza virus. Influenza vaccination can prevent influenza by producing antibodies and lymphocytes in the body. The peak season for influenza is winter and spring, and the duration of protection from influenza vaccine usually lasts for about one year, so it is best to get the flu vaccine before the onset of winter. Routine influenza vaccination is usually recommended for susceptible people. Because of the variability of influenza viruses, you cannot rely on the flu vaccine to prevent influenza. In daily life, you should pay more attention to personal hygiene, wash your hands regularly, keep your room well ventilated, eat a balanced diet, exercise regularly, get enough sleep, and add clothes in time.