Dr. Oghenebrume Wariri is a Clinical Research Fellow in Vaccines and Immunity at the MRC Unit The Gambia at LSHTM. His research focuses on vaccine epidemiology, particularly examining the performance of country-level immunization systems and investigating how broader demand- and supply-side factors influence the delivery and uptake of routine childhood vaccination in West Africa.

Dr. Wariri received his Medical Degree (MBBS) from the University of Benin (Nigeria) and further specialized as a Paediatrician after completing a six-year residency training program, earning the Fellowship of the West African College of Physicians. He obtained his MSc in Global Health from the University of Aberdeen as a fully-funded Chevening scholar. Dr. Wariri previously held a Wellcome Trust Global Health Clinical Research Training Fellowship at Imperial College London. His PhD at the London School of Hygiene and Tropical Medicine (LSHTM) is investigating the burden, spatial pattern, and drivers of untimely routine childhood vaccination in The Gambia.

Dr. Wariri sits on the five-member WHO National Verification Committee (NVC) for Measles and Rubella in The Gambia and is also a member of the Management Committee of the Vaccine Centre at LSHTM. He was the Principal Investigator of the recently concluded EDCTP-funded TIMELY study, which investigated the spatial pattern of untimely routine childhood vaccination in The Gambia. In July 2023, he was awarded the five-year Fogarty Emerging Global Leader award (K43) from the U.S. National Institutes of Health (NIH) to map zero-dose prevalence, delayed measles vaccination, and the risk of measles outbreaks in The Gambia. He is the 2023 African Visiting Fellow to the Office of Population Research (OPR) at Princeton University.