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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.

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

Epidemiology of Infectious Diseases
Modelling and the Dynamics of Infectious Diseases

Research

Vaccine impact modelling
Vaccine epidemiology and economics

Selected Publications

Length of hospital stay and associated treatment costs for patients with susceptible and antibiotic-resistant<i>Salmonella</i>infections: a systematic review and meta-analysis
KIM, C; Frost, I; Naylor, NR; Au, H; Kim, Y; Lee, Y; Bzymek, A; Majgier, K; Moldoveanu, AL; Salman, OM; Simiyu, S; Youssef, DM; Hasso-Agopsowicz, M; ABBAS, K;
2025
BMJ open
The global economic burden of antibiotic-resistant infections and the potential impact of bacterial vaccines: a modelling study
Naylor, NR; Hasso-Agopsowicz, M; KIM, C; Ma, Y; Frost, I; ABBAS, K; Aguilar, G; FULLER, N; Robotham, JV; Jit, M;
2025
BMJ Global Health
Health impact and economic evaluation of the Expanded Program on Immunization in China from 1974 to 2024: a modelling study
Wang, C; Lai, X; ABBAS, K; Pouwels, KB; Zhang, H; Jit, M; Fang, H;
2025
The Lancet Public Health
Vaccination strategies against wild poliomyelitis in polio-free settings: outbreak risk modelling study and cost-effectiveness analysis.
Auzenbergs, M; ABBAS, K; Peak, CM; Voorman, A; Jit, M; O'REILLY, KM;
2025
BMJ global health
Progress and challenges in Nipah vaccine development and licensure for epidemic preparedness and response.
KIM, S; KANG, H; SKRIP, L; Sahastrabuddhe, S; Islam, A; Jung, S-M; Vesga, JF; Endo, A; EDMUNDS, WJ; ABBAS, K;
2025
Expert review of vaccines
Group A Streptococcus: Full Value of Vaccine Assessment (FVVA) Report
Bloom, D; Cadarette, D; Ferranna, M; Tortorice, D; Excler, J-L; Mogasale, V; Seok Lee, J; Kim, S; ABBAS, K; Wiley, R; Mullin, A; Walkinshaw, D; Williams, M; Scarapicchia, T; Wright, M; Cannon, J; Miller, K; Giannini, F;
2025
Strep A Vaccine Global Consortium (SAVAC)
Chikungunya vaccine development, challenges, and pathway toward public health impact.
Maure, C; Khazhidinov, K; KANG, H; AUZENBERGS, M; Moyersoen, P; ABBAS, K; Santos, GM L; Medina, LM H; Wartel, TA; Kim, JH; Clemens, J; Sahastrabuddhe, S;
2024
Vaccine
Research priorities to support typhoid conjugate vaccine decision-making in India: evidence assessment and stakeholder survey.
MOGASALE, VV; Sinha, A; John, J; Hasan Farooqui, H; Ray, A; Chantler, T; Mogasale, V; Dhoubhadel, BG; EDMUNDS, WJ; Clark, A; ABBAS, K;
2024
BMJ public health
Typhoid conjugate vaccine implementation in India: A review of supportive evidence.
MOGASALE, VV; Sinha, A; John, J; Hasan Farooqui, H; Ray, A; CHANTLER, T; Mogasale, V; Gopal Dhoubhadel, B; John Edmunds, W; CLARK, A; ABBAS, K;
2024
Vaccine: X
Programmatic considerations and evidence gaps for chikungunya vaccine introduction in countries at risk of chikungunya outbreaks: Stakeholder analysis.
AUZENBERGS, M; Maure, C; KANG, H; CLARK, A; BRADY, O; Sahastrabuddhe, S; ABBAS, K;
2024
PLoS neglected tropical diseases
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