国家卫健委答21：建议每年都要接种流感疫苗

Core Viewpoint - The article emphasizes the importance of flu vaccination and preventive measures during the autumn and winter seasons, highlighting the effectiveness of vaccines in reducing severe complications from influenza, especially among vulnerable populations [1][2]. Group 1: Flu Vaccination and Monitoring - The Chinese Center for Disease Control and Prevention has established a nationwide flu virus monitoring network to track the changes in flu virus strains and adjust the seasonal flu vaccine components accordingly [1]. - The flu vaccine is recommended annually to ensure it matches the circulating strains, as flu viruses can mutate each year [1]. Group 2: Preventive Measures - In addition to vaccination, the article suggests three key strategies to enhance resistance against flu: maintaining a healthy lifestyle, practicing good hygiene, and being mindful of personal health [2]. - Specific recommendations include regular handwashing, wearing masks, ensuring proper ventilation indoors, and avoiding crowded places [2].