People can prevent influenza A through rest, proper exercise, reasonable diet and vaccination. 1. Pay attention to rest: People’s rest and sleep can directly affect the level of resistance. Maintaining a good routine and avoiding staying up late can relieve fatigue and improve immunity, thus preventing Influenza A. 2. Exercise properly: Proper exercise every day not only keeps people in a good mood, but also improves immunity, thus preventing influenza A. 3. Reasonable diet: eat a well-balanced diet, daily intake of food rich in protein, vitamins, minerals and so on. Such as meat, eggs, fresh fruits and vegetables, etc., can improve the body’s resistance and enhance immunity. 4. Vaccination: It is one of the effective ways to prevent influenza A. Timely vaccination for susceptible people can prevent influenza. Since influenza virus strains mutate almost every year, it is necessary to get vaccinated every year. If people are still infected with influenza A through the above methods, it is recommended that they consult a doctor in time, under the guidance of the doctor, complete the relevant examinations, identify the cause of the disease and treat the symptoms.