Zhiyin Xu has his expertise in evaluation and passion in improving the health and wellbeing. He has been committed to the prevention and control of infectious diseases of children in Shanghai for 15 years, undertaking multiple national, municipal, and district-level key infectious disease prevention and control projects, and participating in research for projects funded by the National Natural Science Foundation of China. His major scholarly background focuses on assessing the epidemiological characteristics, risk factors, disease burden, vaccine efficacy evaluation, and disinfection effectiveness assessment of infectious diseases among children in Shanghai, China. His research encompasses HFMD, enteric infectious diseases, COVID-19, zoonotic diseases, etc