Stefan is a Research Assistant at the London School of Hygiene & Tropical Medicine. His work is focused on school-based malaria control. He is currently coordinating the Learner Treatment Kit Study an evaluation of the impact and cost-effectiveness of a school-based programme of malaria diagnosis and treatment by teachers in Zomba, Malawi.He has an MSc in Control of Infectious Diseases from LSHTM and his thesis focused on evaluating a training programme for school teachers in the use of malaria rapid diagnostic tests in Malawi.