Epidemiological analysis of infectious diseases in older people in China from 2014 to 2022: a population-based study

Background The whole world is undergoing an unprecedented rapid population aging, and the accompanying threat of infectious diseases epidemic among the older people will pose a serious challenge to the national public health. Methods We extracted individual data on 21 notifiable infectious diseases (NIDs) among individuals aged ≥60 years from the Chinese Infectious Disease Surveillance and Control Project (CISDCP) from 2014 to 2022 in the mainland of China. We comprehensively analyzed the epidemiological characteristics of NIDs in older people and estimated the impact of age, year, and the COVID-19 pandemic. Findings A total of 8,604,064 cases of 21 major NIDs were reported, with an overall annual incidence of 362·10/100,000. Sexually transmitted or bloodborne diseases (STBDs, 45·23%) were the most common diseases. Notably, ranking of syphilis rose from fourth to third, while HIV/AIDS moved from eighth to seventh; respiratory diseases (34·88%) showed sustained declines. Tuberculosis remained the most common respiratory diseases despite a 6·4% annual decline (APC, P Interpretation Although China's success in infectious disease control in older people. Effective prevention and control strategies are needed for highest incidence diseases, such as tuberculosis, hepatitis B, and infectious diarrhea, especially in high-incidence regions and among critical age points. Funding National Major Research & Development Program of China (2022YFC2604000).