Overview
Areas of Expertise: Health Services Research, Health Policy, Disease Control Strategy, and Implementation Science
Current Appointments & Affiliations
Mary D.B.T. and James H. Semans International Distinguished Professor
·
2017 - Present
Population Health Sciences,
Basic Science Departments
Professor in Population Health Sciences
·
2017 - Present
Population Health Sciences,
Basic Science Departments
Academic Co-Director of Global Health at Duke Kunshan University
·
2022 - Present
DKU Faculty
Research Professor of Global Health
·
2016 - Present
Duke Global Health Institute,
University Institutes and Centers
Recent Publications
Closing the immunization gap: Overcoming barriers for new vaccine introduction in Southeast and South Asia.
Journal Article Vaccine · December 16, 2025 BACKGROUND: Many middle-income countries (MICs), particularly the ones ineligible for Gavi support, are falling behind in achieving Immunization Agenda 2030 targets. This study aims to compare the vaccine introduction status of national immunization progra ... Full text Link to item CiteCausal mediation analysis of a randomised controlled trial in China: evaluating whether the pay-it-forward strategy increases HPV vaccine uptake by reducing vaccine delay intention and increasing vaccine confidence.
Journal Article BMJ Open · September 25, 2025 OBJECTIVE: To explore whether vaccine confidence and vaccine delay intention mediated the effect of the pay-it-forward intervention on human papillomavirus (HPV) vaccine uptake. DESIGN: This secondary mediation analysis of a two-arm randomised controlled t ... Full text Link to item CiteTrust in Information Sources and Parents' Knowledge, Attitudes, and Practices (KAP) of Children's PCV13 Vaccination in the Yangtze River Delta Region, China.
Journal Article Vaccines (Basel) · September 4, 2025 Background: Trust in information sources is essential to enhance an individual's understanding of the message and boost their willingness to change or act on specific health behavior, including vaccine uptake. This study explores the association between tr ... Full text Link to item CiteRecent Grants
Strengthen the research of vax delivery and immunization
ResearchPrincipal Investigator · Awarded by Bill and Melinda Gates Foundation · 2025 - 2027COVID 19: Vaccination Service Delivery Options and Tech Prep in China
ResearchCo-Principal Investigator · Awarded by Bill and Melinda Gates Foundation · 2020 - 2022Supporting the Government of China to Implement Health Sustainable Development Goals (SDGs)
ResearchPrincipal Investigator · Awarded by Bill and Melinda Gates Foundation · 2016 - 2018View All Grants
Education, Training & Certifications
University of Sussex (United Kingdom) ·
1999
Ph.D.
Fudan University (China) ·
1985
M.D.