[Expert consensus on the construction and improvement of adult vaccination service system at medical institutions].

The "Healthy China 2030" plan outlines the goal of providing equitable, accessible, and continuous health services to achieve overall health for the population. However, with the increasing aging population in China, the burden of chronic non-communicable diseases and infectious diseases negatively impacts public health. The elderly population has high hospitalization rates due to infections from influenza virus, respiratory syncytial virus, and Streptococcus pneumoniae, which can even lead to death, posing a heavy economic burden on the healthcare system. Meanwhile, the prevalence of chronic diseases and multimobidity among adults are continuously rising, and infections could attack the high-risk groups which cause comlicaitons and severe outcomes. Vaccination is considered as most cost-effective measure for preventing infectious diseases, significantly reducing the disease burden on individuals while effectively controlling the spread of epidemics within the community. Currently, the adult vaccination service system in China is significantly lagging, making it difficult to fully utilize the health protection benefits of vaccines throughout the entire lifecycle. Therefore, to improve adult vaccination services and increase the vaccination rate among high-risk populations for severe diseases, this expert consensus analyzes the current status and challenges of adult vaccination services based on literature reviews and expert discussions. To provide suggestions for the establishment and improvement of adult vaccination service system, and reference health authorities and disease control and prevention departments to formulate relevant policies.