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Professor Ngai-sze WONG (王艾斯教授)

BSSc (CUHK), M.Phil (CUHK), PhD (CUHK)

Research Assistant Professor

JC School of Public Health and Primary Care


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Division of Infectious Diseases


Dr. Wong majored in Geography and Resources Management in her undergraduate days, and conducted research in the spatial epidemiology of methadone maintenance treatment utilization for her M.Phil study in the Chinese University of Hong Kong (CUHK). Her geographic information system (GIS) skills were further trained when she worked as a GIS assistant consultant in an environmental impact assessment company, and in an IT company which resells Google geo-products. She established her research skills and knowledge of infectious diseases and public health when she worked as a research assistant in Stanley Ho Centre for Emerging Infectious Diseases, CUHK, for around 4 years. She was also a part-time PhD student in School of Public Health, CUHK. Her doctoral study aimed at estimating HIV population viral load and simulating the impact of test-and-treat intervention on the HIV epidemic growth in Hong Kong through epidemic modelling. She later joined a joint China-US postdoc programme, working in South China-UNC STD Research Training Center in Guangzhou, and University of North Carolina at Chapel Hill in US. Her postdoctoral studies focused on the HIV linkage and retention in care, and syphilis epidemiology with the use of epidemic modelling and spatiotemporal analyses in South China.

Research Interest

  • Epidemiology of infectious diseases, including HIV, Hepatitis C, syphilis, Influenza, TB and dengue

  • Application of spatial, temporal, social networking, epidemic modelling and molecular techniques to study epidemiology

  • Immune recovery of HIV patients following antiretroviral therapy

Selected Publications 

  1. Wong, N.S., Chan, K.C.W., Cheung, E.K.H., Wong, K.H., & Lee, S.S. (2017). Immune recovery of middle-aged HIV patients following antiretroviral therapy – an observational cohort study. Medicine. In press. 

  2. Wong, N.S., Tang, W., Han, L., Best J., Zhang, Y., Huang, S., Zheng, H., Yang, B., Wei, C., Pan, S.W., & Tucker, J.D. (2017). MSM HIV testing following an online testing intervention in China. BMC Infectious Diseases, 17(1), 437.

  3. Wong, N.S., Huang, S., Zheng, H., Chen, L., Zhao, P., Tucker, J.D., Yang, L.G., Goh, B.T., Yang, B. (2017). Stages of syphilis in South China - a multilevel analysis of early diagnosis. BMC Public Health, 17(1), 135. 

  4. Wong, N.S., Wong, K.H., Lee, M.P., Tsang, O.T., Chan, D.P., & Lee, S.S. (2016). Estimation of the Undiagnosed Intervals of HIV-Infected Individuals by a Modified Back-Calculation Method for Reconstructing the Epidemic Curves. PLoS ONE, 11(7), e0159021.

  5. Wong, N.S., Reidpath, D.D., Wong, K.H., & Lee, S.S. (2015). A multilevel approach to assessing temporal change of CD4 recovery following HAART initiation in a cohort of Chinese HIV positive patients. Journal of Infection, 70, 676-8.

  6. Lee, S.S., Wong, N.S., & Lee, S. (2013). Declining Influenza Vaccination Coverage among Nurses, Hong Kong, 2006-2012. Emerging Infectious Diseases, 19, 1660-3.

  7. Lee, S.S., Wong, N.S., & Leung, C.C. (2013). Exposure to avian influenza H7N9 in farms and wet market. Lancet,381, 1815

  8. Wong, N.S., Chan, P.C., Lee, S.S., Lee, S.L., & Lee, C.K. (2013). A multilevel approach for assessing the variability of hepatitis C prevalence in injection drug users by their gathering places. International Journal of Infectious Diseases, 17(3), e193-e198.

  9. Lee, S.S., & Wong, N.S. (2011). The clustering and transmission dynamics of pandemic influenza A (H1N1) 2009 cases in Hong Kong. Journal of Infection, 63(4), 274-280. 

  10. Wong, N.S., Lee, S.S., & Lin, H. (2010). Assessing the spatial distribution of methadone clinic clients and their access to treatment. Harm Reduction Journal, 7:14.

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