Group 1 - The core viewpoint emphasizes the importance of vaccination in preventing respiratory infectious diseases, with various vaccines available such as influenza, varicella, and pneumococcal vaccines [1][2] - It is recommended that children and adolescents, who are at high risk for respiratory infections, receive annual influenza vaccinations and complete other vaccinations according to the national immunization program [1] - For adults, especially healthcare workers, teachers, and those with underlying health conditions, annual influenza vaccination is advised, along with pneumococcal vaccination based on health status [1] Group 2 - The elderly population is identified as a high-risk group for severe illness and death from respiratory diseases due to decreased immunity and underlying conditions, with annual influenza and pneumococcal vaccinations recommended [2] - Overall, vaccines are highlighted as the most economical and effective measure for preventing respiratory infectious diseases, with the public encouraged to consider personal health status and vaccination contraindications [2]