Contact information
merryn.voysey@paediatrics.ox.ac.uk
+44 (0)1865 611314
merryn.voysey@paediatrics.ox.ac.uk
Oxford Vaccine Group, CCVTM, Churchill Rd, Headington, Oxford, OX3 7LE
Research groups
Merryn Voysey
Associate Professor of Statistics in Vaccinology
Merryn Voysey is Associate Professor of Statistics in Vaccinology at the Oxford Vaccine Group. She has extensive experience in vaccines research including clinical trials and observational studies, and is the lead methodologist for the Oxford-AstraZeneca vaccine trials. Her current research interests include maternal antibody interference, vaccine correlates of protection, and the seroepidemiology of bacterial infections
She is the Principal Investigator on a large individual participant data meta-analyses of serological data from vaccine clinical trials funded through the NIHR HTA, and PI of three studies funded by the Bill and Melinda Gates Foundation: a multi-country study of maternal measles seroprevalence in infants, a clinical trial of the timing of measles vaccination in Ugandan infants, and a study of the contribution of T-cell immunity in protection against SARS-CoV-2.
Key publications
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Safety and efficacy of the ChAdOx1 nCoV-19 vaccine (AZD1222) against SARS-CoV-2: an interim analysis of four randomised controlled trials in Brazil, South Africa, and the UK.
Journal article
Voysey M. et al, (2021), Lancet, 397, 99 - 111
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Single-dose administration and the influence of the timing of the booster dose on immunogenicity and efficacy of ChAdOx1 nCoV-19 (AZD1222) vaccine: a pooled analysis of four randomised trials.
Journal article
Voysey M. et al, (2021), Lancet, 397, 881 - 891
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Phase 3 Efficacy Analysis of a Typhoid Conjugate Vaccine Trial in Nepal.
Journal article
Shakya M. et al, (2019), N Engl J Med, 381, 2209 - 2218
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Seroefficacy of Vi Polysaccharide–Tetanus Toxoid Typhoid Conjugate Vaccine (Typbar TCV)
Journal article
Voysey M. and Pollard AJ., (2018), Clinical Infectious Diseases, 67, 18 - 24
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Serotype-Specific Correlates of Protection for Pneumococcal Carriage: An Analysis of Immunity in 19 Countries.
Journal article
Voysey M. et al, (2018), Clin Infect Dis, 66, 913 - 920
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The Influence of Maternally Derived Antibody and Infant Age at Vaccination on Infant Vaccine Responses : An Individual Participant Meta-analysis.
Journal article
Voysey M. et al, (2017), JAMA Pediatr, 171, 637 - 646
Recent publications
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A novel approach for estimating vaccine efficacy for infections with multiple disease outcomes: application to a COVID-19 vaccine trial
Preprint
Williams LR. et al, (2023)
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Persistence of the immune response after two doses of ChAdOx1 nCov-19 (AZD1222): 1 year of follow up of two randomised controlled trials.
Journal article
Voysey M. et al, (2023), Clin Exp Immunol
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Typhoid conjugate vaccine effectiveness in Malawi: evaluation of a test-negative design using randomised, controlled clinical trial data.
Journal article
Liang Y. et al, (2022), Lancet Glob Health
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Human leukocyte antigen alleles associate with COVID-19 vaccine immunogenicity and risk of breakthrough infection.
Journal article
Mentzer AJ. et al, (2022), Nat Med
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Effect of the of 10-valent pneumococcal conjugate vaccine in Nepal 4 years after introduction: an observational cohort study.
Journal article
Shrestha S. et al, (2022), Lancet Glob Health, 10, e1494 - e1504