My areas of expertise and research interests focuses on arboviruses, including mosquito systematics and biology, outbreak investigation, mechanisms of emergence from enzootic cycles, evolution, mosquito-virus interactions, epidemiology, prevention, vaccine development, and control of vector-borne infectious diseases. My research approaches include reverse genetics to identify adaptive mutations that mediate host range changes, and field studies to understand the ecology and epidemiology of emerging arboviruses. I’m also interested in the epidemiology and control of neglected tropical diseases (NTDs) in sub-Saharan Africa. I have a particular interest in quality improvement in health care, in community-based interventions, and in programme design for both sustainability and scale.