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Dr Kaja Abbas

Associate Professor

United Kingdom

I hold a joint position as Associate Professor of Infectious Disease Epidemiology and Dynamics at the London School of Hygiene & Tropical Medicine and Nagasaki University. 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.

 

The vision of our Vaccine Value group is to improve vaccine equity. We have conducted impact assessments of existing and new vaccines to inform vaccine policy in diverse contextual, geographic, and resource settings. Our vaccine value assessments are based on multiple criteria, including disease burden, health and economic impact of vaccination, benefit-risk assessment, equity, vaccine-avertable antimicrobial resistance, acceptability among stakeholders and community, and broader socioeconomic benefits.

 

We welcome collaborations related to estimating the value of vaccination in diverse settings, and you are welcome to contact us.

 

Affiliations

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

Centres

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

Teaching

I teach infectious disease epidemiology, modelling infectious diseases, and health decision science across different modules. I organise the vaccinology short course and symposium. I supervise master's and doctoral students on their thesis projects related to vaccine impact modelling, epidemiology, and economics; interested students are welcome to get in touch with me.

 

 

Research

  • Vaccine impact modelling
  • Vaccine epidemiology and economics

Selected Publications

Public health impact, cost-effectiveness, and budget impact of HPV vaccination in Kazakhstan: a stakeholder engagement and modelling study
Young, GT B; Kassymova, S; Zhang, P; Syla, S; CLARK, A; Sadykova, T; Sukhanberdiyev, K; ABBAS, K;
2026
Vaccine: X
Quantifying relative health impact across Gavi, the Vaccine Alliance's portfolio in 117 countries at the subregional level: a modelling study.
Gaythorpe, KA M; Li, X; Shankar, M; Hartner, A-M; Gibney, Z; ABBAS, K; Abeysuriya, R; Alam, C; Auzenbergs, M; Azman, AS; Barasa, E; Costello, A; Ferrari, MJ; Fraser, K; FU, H; Haile, L; Kakaï, RG; Karachaliou-Prasinou, A; Lee, EC; Katama, EN; Kim, J-H; Jit, M; LIU, Y; Malinga, J; Moore, S; ... Trotter, CL.
2026
The Lancet
Burden of antimicrobial resistance in culture-confirmed Salmonella Typhi isolates in India from 1977 to 2024: A systematic review and meta-analysis.
MOGASALE, VV; Zhang, P; John, J; Farooqui, HH; Ray, A; Mogasale, V; Parry, CM; Dhoubhadel, BG; EDMUNDS, WJ; CLARK, A; ABBAS, K;
2026
PLoS neglected tropical diseases
Economic burden of typhoid fever by antimicrobial resistance in India: a modelling study 2023.
MOGASALE, VV; John, J; Ray, A; Farooqui, HH; Mogasale, V; Hutubessy, R; Dhoubhadel, BG; EDMUNDS, WJ; CLARK, A; ABBAS, K;
2026
The Lancet Regional Health - Southeast Asia
Burden of typhoid fever and antimicrobial resistance in India (2023): a modelling study.
MOGASALE, VV; John, J; Sahai, N; Ray, A; Farooqui, HH; Mogasale, V; Dhoubhadel, BG; EDMUNDS, WJ; CLARK, A; ABBAS, K;
2026
The Lancet Regional Health - Southeast Asia
Age-specific chikungunya outbreak response immunisation strategies in Brazil: a modelling study.
KANG, H; LIM, A; CLARK, A; Colón González, FJ; Clapham, HE; Carrera, J-P; Kim, J-H; Auzenbergs, M; LAKSHMINARAYANAN, P; López-Vergès, S; Sim, SY; Han, SM; Cerqueira-Silva, T; Endy, T; Cucunubá, ZM; EDMUNDS, WJ; Sahastrabuddhe, S; BRADY, OJ; ABBAS, K;
2025
eClinicalMedicine
Stakeholder meeting report: Chikungunya virus – recent outbreaks, vaccine development and the way forward
KANG, H; Auzenbergs, M; ABBAS, K; Maure, C; Moreno, L; Pascale, JM; López-Vergès, S; Ortega-Barria, E; Kim, J; Luz, K; Warimwe, G; Tangkeangsirisin, W; Garrido, EM R; Robles, Y; De Cuellar, CM; Vinhal, L; Gonzalez-Escobar, G; Ozturk, M; Dubischar, K; Jaramillo, JC; Gache, CH; Sumathy, K; Medina, LM H; Bouckenooghe, A; Ferguson, D; ... Sahastrabuddhe, S.
2025
Vaccine: X
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