Professor Dennis Ip is Clinical Professor of Practice and Head of the Division of Community Medicine and Public Health Practice in the School of Public Health, LKS Faculty of Medicine at the University of Hong Kong. Professor Ip studied medicine in Hong Kong, and completed postgraduate training respectively in Infectious Diseases, Travel Medicine, Statistics, and Applied Mathematics. He was then trained in Epidemiology as a Chevening Scholar in Cambridge, and in Precision Public Health as a Visiting Fellow at the PHG Foundation of University of Cambridge. He is a specialist in Public Health Medicine, and a founding member of the Faculty of Travel Medicine of the Royal College of Physicians and Surgeons of Glasgow. Before joining the University, he served as a frontline physician in the Hospital Authority and as the first Disease Modelling Specialist at the Centre for Health Protection.

Professor Ip’s research focuses on exploring novel and evidence-based solutions to inform and advance public health practice on various major population health issues, including innovative approaches for community disease surveillance and prevention for respiratory infectious diseases with epidemic potential, and novel models for precision prevention and screening of common NCDs and cancers.

Professor Ip serves as advisor on multiple committees and organisations, including WHO consultant on the development of infectious disease surveillance systems in China, international advisor on travel medicine for the Royal College of Physicians and Surgeons of Glasgow, and member of the Cancer Expert Working Group on Cancer Prevention and Screening, Scientific Committee on Vector-borne disease, and the AIDS Trust Fund.

Selected Publications
 (*corresponding author)

1. Wang Y, So HC, Tsang NNY, Kwok SK, Cowling BJ, Leung GM, Ip DKM*. Clinical profile analysis on community infections over periods with Omicron BA.2, BA.4/5, and XBB dominance in Hong Kong: a prospective cohort study. Lancet Infect Dis. 2025 Mar;25(3):276-289.  doi: 10.1016/S1473-3099(24)00574-7.
2. Tsang NNY, So HC, Cowling BJ, Leung GM, Ip DKM*. Effectiveness of BNT162b2 and CoronaVac COVID-19 vaccination against asymptomatic and symptomatic infection of SARS-CoV-2 omicron BA.2 in Hong Kong: a prospective cohort study. Lancet Infect Dis. 2023 Apr;23(4):421-434. doi: 10.1016/S1473-3099(22)00732-0.
3. Ip DKM*, Ng YY, Tam YH, Thomas NV, Dahal P, Stepniewska K, Newton PN, Guérin PJ, Hopkins H. Non-malarial febrile illness: a systematic review of published aetiological studies and case reports from China, 1980-2015. BMC Infect Dis. 2024 Aug 20;24(1):843. doi: 10.1186/s12879-024-09542-3.
4. Tsang TK, Wang C, Tsang NNY, Fang VJ, Perera RAPM, Malik Peiris JS, Leung GM, Cowling BJ, Ip DKM*. Impact of host genetic polymorphisms on response to inactivated influenza vaccine in children. NPJ Vaccines. 2023 Feb 20;8(1):21. doi: 10.1038/s41541-023-00621-1.
5. Tsang NNY, So HC, Ng KY, Cowling BJ, Leung GM, Ip DKM*. Diagnostic performance of different sampling approaches for SARS-CoV-2 RT-PCR testing: a systematic review and meta-analysis. Lancet Infect Dis. 2021 Sep; 21(9):1233-1245. doi: 10.1016/S1473-3099(21)00146-8.
6. Ip DKM*Lau EH, So HC, Xiao J, Lam CK, Fang VJ, Tam YH, Leung GM, Cowling BJ. A Smart Card-Based Electronic School Absenteeism System for Influenza-Like Illness Surveillance in Hong Kong: Design, Implementation, and Feasibility Assessment. JMIR Public Health Surveill. 2017 Oct 6;3(4):e67. doi: 10.2196/publichealth.6810.
7. Ip DKM, Lau LL, Leung NH, Fang VJ, Chan KH, Chu DK, Leung GM, Peiris JS, Uyeki TM, Cowling BJ. Viral Shedding and Transmission Potential of Asymptomatic and Paucisymptomatic Influenza Virus Infections in the Community. Clin Infect Dis. 2017 Mar 15;64(6):736-742. doi: 10.1093/cid/ciw841.
8. Ip DKM*, Lau LLH, Chan KH, Fang VJ, Leung GM, Peiris MJS, Cowling BJ. The Dynamic Relationship Between Clinical Symptomatology and Viral Shedding in Naturally Acquired Seasonal and Pandemic Influenza Virus Infections. Clin Infect Dis. 2016 Feb 15;62(4):431-437. doi: 10.1093/cid/civ909.
9. Ip DKM, Lau EH, Tam YH, So HC, Cowling BJ, Kwok HK. Increases in absenteeism among health care workers in Hong Kong during influenza epidemics, 2004-2009. BMC Infect Dis. 2015 Dec 29;15:586. doi: 10.1186/s12879-015-1316-y.
10. Ip DKM, Liao Q, Wu P, Gao Z, Cao B, Feng L, Xu X, Jiang H, Li M, Bao J, Zheng J, Zhang Q, Chang Z, Li Y, Yu J, Liu F, Ni MY, Wu JT, Cowling BJ, Yang W, Leung GM, Yu H. Detection of mild to moderate influenza A/H7N9 infection by China's national sentinel surveillance system for influenza-like illness: case series. BMJ. 2013 Jun 24;346:f3693. doi: 10.1136/bmj.f3693. PMID: 23798720; PMCID: PMC3691004.