Contact information
merryn.voysey@paediatrics.ox.ac.uk
+44 (0)1865 611314
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 was the lead methodologist for the Oxford-AstraZeneca vaccine trials.
She is the Principal Investigator on studies of measles seroprevalence in infants, the timing of measles vaccination in Ugandan infants, the contribution of T-cell immunity in protection against SARS-CoV-2, correlates of protection for group B streptococcus vaccines, and pneumococcal vaccine seroefficacy.
Merryn is a member of the WHO Technical Advisory Group on Group B Streptococcus Vaccine Development and Chairs the Department of Paediatrics Athena Swan Data subcommittee.
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, (2020), Lancet
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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
Recent publications
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Immunogenicity, safety and reactogenicity of heterologous (third dose) booster vaccination with a full or fractional dose of two different COVID-19 vaccines: A phase 4, single-blind, randomized controlled trial in adults.
Journal article
Costa Clemens SA. et al, (2023), Hum Vaccin Immunother, 19
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Optimising DTwP-containing vaccine infant immunisation schedules (OptImms) - a protocol for two parallel, open-label, randomised controlled trials.
Journal article
Kelly S. et al, (2023), Trials, 24
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Immunogenicity and seroefficacy of 10-valent and 13-valent pneumococcal conjugate vaccines: a systematic review and network meta-analysis of individual participant data
Journal article
Feng S. et al, (2023), eClinicalMedicine, 61
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COVID-19 vaccine effectiveness and variants in Nepal: study protocol for a test-negative case-control study with SARS-CoV-2 genetic sequencing.
Journal article
Bijukchhe SM. et al, (2023), BMJ Open, 13
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Assessment of vaccine herd protection in a cluster-randomised trial of Vi conjugate vaccine against typhoid fever: results of further analysis.
Journal article
Khanam F. et al, (2023), EClinicalMedicine, 58