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I have 30 years’ experience working on malaria with a specific focus on measuring and defining transmission and identifying methods and approaches to stop it. My research includes (i) exploratory work on factors governing transmission and transmission reservoirs, particularly the importance of adults, asymptomatic parasite carriers and people with very low parasitaemias; and (ii) assessing the impact of drugs on transmission and optimal control approaches for transmission reduction. I have led two large programmes funded by BMGF; firstly elucidating the infectious reservoir of transmission in different endemic settings in Kenya and Burkina Faso senior investigator and secondly evaluating the effect of control measures on the infectious reservoir in Uganda, The Gambia, Ethiopia and Burkina Faso. I have also been a senior investigator on large community randomized control studies evaluating school based interventions, foci targeting and mass drug administration. This has included developed operational and laboratory approaches to best evaluate efficacy. My current activities leading several initiatives aimed at further describing transmission and using surveillance to more effectively assess intervention success. OTher focus areas include better understanding of the transmission of zoonotic malaria P.knowlesi and the development of serological assays for malaria (particularly P.vivax) and other infectious diseases.