Jacob John

SR.PROFESSOR , Centre for Public Health

144Peer-reviewed publications

6,605Citations (OpenAlex)

38H-index (OpenAlex)

2Active grants

2PhD students supervised

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Jacob John is Professor of Community Medicine at the Christian Medical College in Vellore, India. He heads the Centre for Public Health at CMC Vellore and serves as the Vice Principal for Research. Jacob received his MBBS from CMC Ludhiana, MD in Community Medicine from CMC Vellore, and PhD from Imperial College London. He is an elected Fellow of the Indian Academy of Sciences and the National Academy of Sciences. As a public health physician focused on preventing avoidable morbidity and mortality in children, his work and research emphasise controlling vaccine-preventable infectious diseases. Over the past two decades, Jacob has contributed to vaccine policy for Poliovirus, Hib, Rotavirus, Pneumococcus, and Typhoid, conducting vaccine trials, including pivotal phase 3 trials, and multicentre epidemiological projects. He has authored over 140 publications in peer-reviewed international journals.

VaccinologyTuberculosis prevention and control

Recent Publications

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2026
Burden of typhoid fever and antimicrobial resistance in India (2023): a modelling study
LANCET REGIONAL HEALTH - SOUTHEAST ASIA
Mogasale VV, John J, Sahai N, Ray A, et al.
Original research2 citations
2026
Burden of antimicrobial resistance in culture-confirmed Salmonella Typhi isolates in India from 1977 to 2024: A systematic review and meta-analysis
PLOS NEGLECTED TROPICAL DISEASES
Mogasale VV, Zhang P, John J, Farooqui HH, et al.
Original research1 citations
2026
Economic burden of typhoid fever by antimicrobial resistance in India: a modelling study 2023
LANCET REGIONAL HEALTH - SOUTHEAST ASIA
Mogasale VV, John J, Ray A, Farooqui HH, et al.
Original research
2026
Emergence of ceftriaxone resistant Salmonella Kentucky in India driven by multiple novel variants of Salmonella genomic island carrying blaCTX-M-55
MICROBIAL PATHOGENESIS
Velmurugan A, Jacob JJ, Solaimalai D, Vasuki M, et al.
Original research
2026
Exploring barriers to and motivations for vaccine uptake in a typhoid vaccine trial in Vellore, South India: a qualitative study
BMC PUBLIC HEALTH
Thomas NE, Malini BLT, Dileepan P, John J
Original research

Showing 5 of 144 publications.

Current Research Funding

National Institute of Allergy and Infectious DiseasesR01AI181283
Novel tools for measuring typhoid vaccine impact
$683K2024 – 2029
Bill & Melinda Gates FoundationINV-036437
To enhance the informativeness and impact of the Typhi-BEV (typhoid conjugate vaccine effectiveness study by applying rigorous research methods for study design, analysis and communication to the proposed study plan
$6.4M2021 – 2026

Frequent Collaborators

Prof Gagandeep Kang

CMC Vellore · GI Sciences

24 co-authored