Influenza vaccination is an effective preventive measure that significantly reduces the risk of influenza infection and complications due to the severity of influenza, making it necessary. Flu vaccination is generally recommended for people in areas with a high prevalence of influenza and for people at high risk, such as children, the elderly, people with chronic diseases, medical personnel, and pregnant women. Most influenza occurs from October to February, so the flu vaccine should be given well in advance of the peak of influenza and should be given every year. There are various types of influenza vaccines, and you can choose to receive the relevant influenza vaccination according to your specific situation. In addition to the flu vaccination, you should go to less crowded places during the high season of influenza and take protective measures by wearing a good mask when you go out. You should also pay attention to good hygiene habits, eat a balanced diet, avoid overworking and staying up late, keep indoor air fresh, and do more physical exercise.