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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 NS, Kwan TH, Lee KCK, Lau JYC, SS Lee. Delineation of chemsex patterns of men who have sex with men in association with their sexual networks and linkage to HIV prevention. International Journal of Drug Policy. 2020;75.

  2. Wong NS, Chan KCW, Wong BCK, Leung CC, Chan WK, Lin AWC, Lui GCY, Mitchell KM, Lee SS. Latent Tuberculosis Infection Testing Strategies for HIV-Positive Individuals in Hong Kong. JAMA Netw Open. 2019 Sep 4;2(9):e1910960.

  3. Wong NS, Leung CC, Chan KCW, Chan WK, Lin AWC, Lee SS. A longitudinal study on latent TB infection screening and its association with TB incidence in HIV patients. Scientific Reports. 2019;9:10093.

  4. Lui GCY, Wong NS, Wong RYK, Tse YK, Wong VWS, Leung CC, Chan HLY, Wong GLH. Antiviral therapy for hepatitis B prevents liver injury in patients with tuberculosis and hepatitis B co-infection. Clin Infect Dis. 2019 Mar 22. pii: ciz241. doi: 10.1093/cid/ciz241. [Epub ahead of print]

  5. Sun HY, Uemura H, Wong NS, Chan DP, Wong BC, Lin PH, Su LH, Hung CC, Oka S, Chang SY, Lee SS. Molecular epidemiology of acute HCV infection in HIV-positive patients from Hong Kong, Taipei, Tokyo. Liver Int. 2019;39(6):1044-1051.

  6. Wong NS, Kwan TH, Tsang OTY, Lee MP, Yam WC, Lam W, Leung WS, Chan JMC, Ho KM, Lee SS. Pre-exposure prophylaxis (PrEP) for MSM in low HIV incidence places: should high risk individuals be targeted? Scientific Reports. 2018:8:11641.

  7. Wong NS, Chen L, Tucker JD, Zhao P, Goh BT, Poon CM, Yang LG, Yang B, Zheng H, Huang S. Distribution of reported syphilis cases in South China: spatiotemporal analysis. Scientific Reports. 2018:8:9090.

  8. Wong NS, Lee CK, Ng SC, Wong HK, Chan DPC, Lee SS. Prevalence of hepatitis C infection and its associated factors in healthy adults without identifiable route of transmission. J Viral Hepat. 2018;25(2):161-170.

  9. Wong NS, Mao J, Cheng W, Tang W, Cohen MS, Tucker JD, Xu H. HIV linkage to care and retention in care rate among MSM in Guangzhou, China. AIDS Behav. 2018;22(3):701-710.

  10. Wong NS, Wong KH, Lee MP, Tsang OT, Chan DP, Lee SS. Estimation of the Undiagnosed Intervals of HIV-Infected Individuals by a Modified Back-Calculation Method for Reconstructing the Epidemic Curves. PloS one. 2016; 11(7):e0159021.

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