Currently Lassa Vaccine Project Lead ad Interim and Clinical Lead, at IAVI. Joined IAVI in 2021, as Senior Science and Clinical Advisor, Translational Medicine, HIV Vaccine Product Development Team Lead. Trained as pediatrician, epidemiologist and immunologist. Vaccine R&D expert with large experience in multi-institutional international collaborations. Until mid-2021 ChAdOx1-nCOV19 vaccine Global Clinical Head at AstraZeneca responsible for ex-US clinical development, until product licensure in most international markets and WHO recommendation. Formerly at WHO (2015-2019), Initiative for Vaccine Research, focal point for tuberculosis, HIV, malaria, RSV, Group B Streptococcus, Group A streptococcus vaccines R&D, coordinating expression of WHO priorities in vaccine R&D pathways, preferred product profiles and policy preparation. Worked before that as Senior Director, Clinical Development at GSK on malaria candidate vaccine clinical development, overseeing translational science trials, experimental human infection trials, Phase 2 and 3 program implementation in healthy children, infants, neonates and HIV-infected children. Experience in pharmaceutical industry, WHO, public private partnership, capacity strengthening of research centres in Africa and investigator medical training, Independent Data Monitoring Committee activities. Previously lived and worked at the Medical Research Council, The Gambia and in Cochabamba, Bolivia.