Professor Jiang’s research has focused on epidemiology, public health, and health economics, with particular emphasis on infectious disease surveillance, chronic disease prevention, and the evaluation of health policy interventions. Through national public health research programmes and international collaborative work, he has contributed to the development of disease surveillance systems, outbreak investigation methods, and evidence-based approaches to public health policy in China and the Asia-Pacific region. He has authored numerous peer-reviewed publications in epidemiology and public health and has contributed to the education and professional development of public health specialists and epidemiologists. His academic and advisory work has also addressed the application of epidemiological evidence to population health, health-system development, and public health policy. Collectively, these contributions reflect a sustained research programme connecting epidemiological science with the practical requirements of disease prevention, health policy, and population health.