Colleges
Liberty Cantrell
MSc, BSc
Medical Statistician & DPhil Student
Liberty joined the Oxford Vaccine Group in 2021 after graduating from the University of Nottingham with a BSc in Mathematics and an MSc in Statistics. Since joining the team she has worked across a variety of research areas including COVID-19, pertussis and group B streptococcus (GBS).
Liberty started her DPhil in 2023 studying correlates of protection for vaccines against GBS. During this work, she is investigating antibody levels associated with a reduced risk of infant disease using case-control data from countries across Europe and Africa. She has also been conducting simulation studies to investigate the impact of the choice of analysis method on the results.
Her research interests include vaccinations during pregnancy and correlates of protection.
Recent publications
Serological thresholds of risk reduction for infant group B streptococcus disease
Preprint
Cantrell L. et al, (2026)
Optimising DTwP-containing vaccine infant immunisation schedules in Uganda and Nepal (OptImms): two open-label, non-inferiority, randomised controlled trials.
Journal article
Bijukchhe SM. et al, (2026), Lancet Infect Dis
Reactogenicity and immunogenicity following heterologous and homologous third dose COVID-19 vaccination in UK adolescents (Com-COV3): A randomised controlled non-inferiority trial.
Journal article
Kelly E. et al, (2026), J Infect, 92
"Now that the baby is out, I can be vaccinated": a qualitative study on COVID-19 vaccine hesitancy in pregnant women in Kilifi, Kenya.
Journal article
Koech A. et al, (2026), Front Public Health, 14
Informing optimal testing and isolation strategies across different stages of the diagnostic development pipeline using mathematical models: SARS-CoV-2 in the UK as a case study.
Journal article
Aguas R. et al, (2026), BMJ Public Health, 4

