The World Health Organization (WHO) designates the last week of April as World Immunization Week to highlight the importance of immunization to reduce disease and save lives. Can vaccination provide lifelong protection? What vaccines should different groups of people get? Can allergies still be vaccinated? For this reason, People's Daily Online interviewed Li Tongzeng, chief physician of the Department of Infectious Diseases of Beijing You'an Hospital.
Source: People's Daily Science Popularization