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Wenfeng Gong

Adjunct Associate Professor of Global Health
Duke Global Health Institute

Selected Publications


Causal 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 Cite

Effect of a pay-it-forward strategy on reducing HPV vaccine delay and increasing uptake among 15- to 18-year-old girls in China: A randomized controlled trial.

Journal Article PLoS Med · July 2025 BACKGROUND: Catch-up human papillomavirus (HPV) vaccination is challenging in many low- and middle-income countries (LMICs). Pay-it-forward offers an individual a subsidized vaccine, then an opportunity to donate to help others access vaccinations. Our ran ... Full text Link to item Cite

Factors affecting caregivers' HPV vaccination decisions for adolescent girls: A secondary analysis of a Chinese RCT.

Journal Article PLoS One · 2025 BACKGROUND: Despite the HPV vaccine's effectiveness against cervical cancer, uptake among adolescent girls in China remains low, with caregivers playing a crucial role in vaccination decisions. This study investigates factors influencing caregivers' action ... Full text Link to item Cite

Towards an actionable One Health approach.

Journal Article Infectious diseases of poverty · April 2024 BackgroundDespite the increasing focus on strengthening One Health capacity building on global level, challenges remain in devising and implementing real-world interventions particularly in the Asia-Pacific region. Recognizing these gaps, the One ... Full text Cite

Vaccine confidence mediates the association between a pro-social pay-it-forward intervention and improved influenza vaccine uptake in China: A mediation analysis.

Journal Article Vaccine · January 2024 IntroductionA Chinese clinical trial has demonstrated that a prosocial pay-it-forward intervention that offered subsidized vaccination and postcard messages effectively increased influenza vaccine uptake and vaccine confidence. This secondary anal ... Full text Cite

Influenza vaccine uptake among children and older adults in China: a secondary analysis of a quasi-experimental study.

Journal Article BMC infectious diseases · April 2023 BackgroundInfluenza vaccination is the key to prevent influenza-related disease, especially among high-risk populations. However, influenza vaccine uptake in China is low. This secondary analysis of a quasi-experimental trial aimed to understand f ... Full text Cite

The effectiveness of pay-it-forward in addressing HPV vaccine delay and increasing uptake among 15-18-year-old adolescent girls compared to user-paid vaccination: a study protocol for a two-arm randomized controlled trial in China.

Journal Article BMC Public Health · January 7, 2023 BACKGROUND: Human papillomavirus (HPV) vaccination could prevent cervical and other HPV-associated cancers attributable to vaccine-associated HPV types. However, HPV vaccination coverage among women aged 9-18 years old is low in China. Common barriers incl ... Full text Link to item Cite

A One Health information database based on standard bibliometric analysis

Journal Article Science in One Health · November 1, 2022 Background: One Health is an integrated concept of health that aims to optimize the health of humans, animals, plants, and the environment. Identifying research gaps and specific expertise areas is important for understanding the role of One Health in prac ... Full text Cite

Corrigendum to ‘A One Health information database based on standard bibliometric analysis’ [Science in One Health 1 (2022) 100012] (S2949704323000069), (10.1016/j.soh.2023.100012)

Journal Article Science in One Health · November 1, 2022 Following publication of the original article [1], it was found the number of countries with identified One Health publications was incorrectly shown in Table 2, Supplementary data - Multimedia component 3 (Table-S2), corresponding text and Fig. 3, which s ... Full text Cite

Effectiveness of a pay-it-forward intervention compared with user-paid vaccination to improve influenza vaccine uptake and community engagement among children and older adults in China: a quasi-experimental pragmatic trial.

Journal Article The Lancet. Infectious diseases · October 2022 BackgroundChina has low seasonal influenza vaccination rates among priority populations. In this study, we aimed to evaluate a pay-it-forward strategy to increase influenza vaccine uptake in rural, suburban, and urban settings in China.Methods ... Full text Cite

The transmission dynamics of Middle East Respiratory Syndrome coronavirus.

Journal Article Travel medicine and infectious disease · January 2022 BackgroundIn this study, we aimed to quantify the contribution of different transmission routes of the Middle East respiratory syndrome (MERS) and determine its transmissibility.MethodsBased on the natural history and transmission feature ... Full text Cite

A critical review of measures of childhood vaccine confidence.

Journal Article Current opinion in immunology · August 2021 The World Health Organization and global partners sought to identify existing measures of confidence in childhood vaccines, as part of a broader effort to measure the range of behavioural and social drivers of vaccination. We identified 14 confidence measu ... Full text Cite

How kindness can be contagious in healthcare.

Journal Article Nature medicine · July 2021 Full text Cite

Impact of immunization programs on 11 childhood vaccine-preventable diseases in China: 1950-2018.

Journal Article Innovation (Camb) · May 28, 2021 To evaluate the achievements of China's immunization program between 1950 and 2018, we chose 11 vaccine-preventable diseases (VPDs) as representative notifiable diseases and used annual surveillance data obtained between 1950 and 2018 to derive disease inc ... Full text Link to item Cite

Insight into the practical performance of RT-PCR testing for SARS-CoV-2 using serological data: a cohort study

Journal Article Lancet Microbe · February 1, 2021 Background: Virological detection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) through RT-PCR has limitations for surveillance. Serological tests can be an important complementary approach. We aimed to assess the practical performance of ... Full text Cite

What Is Required to Prevent a Second Major Outbreak of SARS-CoV-2 upon Lifting Quarantine in Wuhan City, China

Journal Article Innovation · May 21, 2020 Background: The Chinese government implemented a metropolitan-wide quarantine of Wuhan city on 23rd January 2020 to curb the epidemic of the coronavirus COVID-19. Lifting of this quarantine is imminent. We modelled the effects of two key health ... Full text Cite

Expanding Access: Cost-effectiveness of Cochlear Implantation and Deaf Education in Asia.

Journal Article Otolaryngol Head Neck Surg · October 2019 OBJECTIVE: To determine the cost-effectiveness of cochlear implantation (CI) with mainstream education and deaf education with sign language for treatment of children with profound sensorineural hearing loss in low- and lower-middle income countries in Asi ... Full text Link to item Cite

Using Serosurvey Data Triangulation for More Accurate Estimates of Vaccine Coverage: Measured and Modeled Coverage From Pakistan Household Surveys.

Journal Article American journal of epidemiology · October 2019 Household surveys remain an essential method for estimating vaccine coverage in developing countries. However, the resulting estimates have inevitable and currently unmeasurable information biases due to inaccuracies in recall, low retention of home-based ... Full text Cite

Comparison of three rapid household survey sampling methods for vaccination coverage assessment in a peri-urban setting in Pakistan.

Journal Article International journal of epidemiology · April 2019 BackgroundHousehold surveys are an essential tool for vaccine coverage monitoring in developing countries, and the World Health Organization (WHO) Expanded Program on Immunization (EPI) cluster survey design has been a default choice for decades. ... Full text Cite

Standardized Interpretation of Chest Radiographs in Cases of Pediatric Pneumonia From the PERCH Study.

Journal Article Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · June 2017 Background.Chest radiographs (CXRs) are a valuable diagnostic tool in epidemiologic studies of pneumonia. The World Health Organization (WHO) methodology for the interpretation of pediatric CXRs has not been evaluated beyond its intended applicati ... Full text Cite

Moving Beyond GDP: Cost Effectiveness of Cochlear Implantation and Deaf Education in Latin America.

Journal Article Otol Neurotol · September 2016 HYPOTHESIS: Cochlear implantation (CI) and deaf education are cost effective management strategies of childhood profound sensorineural hearing loss in Latin America. BACKGROUND: CI has been widely established as cost effective in North America and Europe a ... Full text Link to item Cite

Cost Effectiveness of Childhood Cochlear Implantation and Deaf Education in Nicaragua: A Disability Adjusted Life Year Model.

Journal Article Otol Neurotol · September 2015 INTRODUCTION: Cochlear implantation (CI) is a common intervention for severe-to-profound hearing loss in high-income countries, but is not commonly available to children in low resource environments. Owing in part to the device costs, CI has been assumed t ... Full text Link to item Cite

GDP Matters: Cost Effectiveness of Cochlear Implantation and Deaf Education in Sub-Saharan Africa.

Journal Article Otol Neurotol · September 2015 HYPOTHESIS: Cochlear implantation and deaf education are cost effective in Sub-Saharan Africa. BACKGROUND: Cost effectiveness of pediatric cochlear implantation has been well established in developed countries but is unknown in low resource settings, where ... Full text Link to item Cite

Treating maladaptive grief and posttraumatic stress symptoms in orphaned children in Tanzania: group-based trauma-focused cognitive-behavioral therapy.

Journal Article Journal of traumatic stress · December 2014 This study was designed to test the feasibility and child clinical outcomes for group-based trauma-focused cognitive behavior therapy (TF-CBT) for orphaned children in Tanzania. There were 64 children with at least mild symptoms of grief and/or traumatic s ... Full text Cite

PVENN: Stata module to create proportional Venn diagram

Software pvenn produces proportioned and positioned Venn diagrams, supporting 2-circle and 3-circle Venn diagrams, as well as 1-circle diagram. pvenn can also draw a rectangle outside all circles to proportionally represent the total population size, when it is pos ... Cite