Ifedayo is a Clinical Epidemiologist in the Epidemiology and Demography Department at the Programme and an Associate Professor of Infectious Diseases Epidemiology at the London School of Hygiene and Tropical Medicine. He obtained his medical degree at the University of Ilorin, Nigeria, trained in Paediatrics and Child Health at the Lagos University Teaching Hospital and received the Fellowship of the West Africa College of Physicians in Paediatrics in 2005. He studied Epidemiology at the London School of Hygiene and Tropical Medicine and was awarded his MSc by the University of London in 2009. He got his PhD from the University of Amsterdam in 2012 for research in Tuberculosis Epidemiology. His research interests are in vaccine impact/effectiveness studies, innovative approaches/surveillance tools for monitoring vaccination, Tuberculosis Epidemiology, and evidence synthesis including systematic reviews. He was awarded the MRC/DFID African Research Leader Fellowship in 2018, is a member of the Kenyan National Immunisation Coordinating Committee, and a member of the World Health Organisation, Africa Region’s (WHO-AFRO) Regional Immunisation Technical Advisory Group.
He currently works on pneumococcal conjugate vaccine impact studies in Kenya and Nigeria and is involved in rotavirus vaccine impact studies in Kenya. He is specifically interested in the scientific basis for managing pneumococcal conjugate vaccine programmes in Africa with only pneumococcal carriage data which is funded in part by a grant from the UK NIHR Mucosal Pathogens Research Unit at University College London. He is also interested in vaccine seroepidemiology research including the application to estimating vaccination coverage, population immunity and force of infection in African settings which is funded by the UK Medical Research Council through a MRC/DFID African Research Leader Fellowship. This project will utilise epidemiology, multiplex immunoassays and mathematical modelling approaches to generate evidence to inform vaccine policy in Kenya and the rest of Africa.