Dr Kaja Abbas

Associate Professor

United Kingdom

My research area is vaccine impact modelling with a focus on estimating the health, economic, and equity impact of vaccination programmes to support evidence-based decision-making on vaccination strategies in collaboration with partners and stakeholders at the global, regional, and national levels. I have worked on impact assessment of existing and new vaccines to inform vaccine policy in varied contextual settings of low-, middle-, and high-income countries.

I hold a joint position with LSHTM and Nagasaki University. I welcome collaborations related to estimating vaccination impact in different geographic settings, and you are welcome to contact me.


Department of Infectious Disease Epidemiology and Dynamics
Faculty of Epidemiology and Population Health


Centre for Epidemic Preparedness and Response
Centre for Mathematical Modelling of Infectious Diseases
Vaccine Centre
Global Health Economics Centre


Epidemiology of Infectious Diseases

Modelling and the Dynamics of Infectious Diseases


Vaccine impact modelling

Vaccine epidemiology and economics

Selected Publications

Modeling the potential health impact of prospective Strep A vaccines
Giannini, F; Cannon, JW; Cadarette, D; Bloom, DE; Moore, HC; Carapetis, J; ABBAS, K;
NPJ vaccines
Dosing interval strategies for two-dose COVID-19 vaccination in 13 middle-income countries of Europe: Health impact modelling and benefit-risk analysis.
LIU, Y; PEARSON, CA B; Sandmann, FG; BARNARD, RC; Kim, J-H; CMMID COVID-19 Working Group,; FLASCHE, S; JIT, M; ABBAS, K;
The Lancet Regional Health - Europe
Vaccine value profile for Chikungunya
Flandes, X; Hansen, CA; Palani, S; ABBAS, K; Bennett, C; Caro, WP; Hutubessy, R; Khazhidinov, K; Lambach, P; Maure, C; Marshall, C; Rojas, DP; Rosewell, A; Sahastrabuddhe, S; Tufet, M; Wilder-Smith, A; Beasley, DW C; Bourne, N; Barrett, AD T;
The full health, economic, and social benefits of prospective Strep A vaccination.
Cadarette, D; Ferranna, M; Cannon, JW; ABBAS, K; Giannini, F; Zucker, L; Bloom, DE;
npj Vaccines
Associations of water, sanitation, and hygiene with typhoid fever in case-control studies: a systematic review and meta-analysis.
KIM, C; Goucher, GR; Tadesse, BT; Lee, W; ABBAS, K; Kim, J-H;
BMC infectious diseases
Global impact and cost-effectiveness of one-dose versus two-dose human papillomavirus vaccination schedules: a comparative modelling analysis.
PREM, K; Choi, YH; Bénard, É; Burger, EA; Hadley, L; Laprise, J-F; Regan, MC; Drolet, M; Sy, S; ABBAS, K; Portnoy, A; Kim, JJ; Brisson, M; JIT, M;
BMC medicine
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