His main research and practical work concentrate on tropical diseases, such as malaria, cutaneous leishmaniasis (CL), poliomyelitis, tuberculosis, and HIV/AIDS, and have informed his new CL treatment strategy, which has already proven successful in Peru and Pakistan. Future work focuses on Phase III testing and scaling up CL treatment in the 5 countries most affected, and creating social strategies to reach critical engagement and local manufacturing of the CL treatment in endemic areas.