Influenza A can be prevented by vaccination, regulating aspects of life to adjust dietary habits to prevent infection. 1. Vaccination: Vaccination is an effective way to prevent influenza. After vaccination, the body will produce antibodies that can prevent influenza virus infection. However, the influenza virus is prone to mutation, so it is necessary to get vaccinated every year. 2. Life: usually pay attention to ensure sufficient rest, at the same time, appropriate exercise. Insufficient rest will easily lead to a decline in resistance, and it is recommended that you do not stay up all night. Reasonable arrangements for exercise to enhance physical fitness. 3. Diet: Eat a well-balanced diet, and supplement nutrition to improve immunity. Drink more water, eat more vegetables and fruits, and eat less stimulating food.