Foundation for Innovative New Diagnostics (FIND), London School of Hygiene & Tropical Medicine - Faculty of Infectious and Tropical Diseases, Nanjing Medical University - School of Public HealthUniversity of North Carolina Project-China, Southern Medical University - Dermatology Hospital, London School of Hygiene & Tropical Medicine - Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine - Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine - Faculty of Infectious and Tropical Diseases, North Carolina State University, Foundation for Innovative New Diagnostics (FIND), Foundation for Innovative New Diagnostics (FIND), University of North Carolina (UNC) at Chapel Hill, Makerere University - School of Public Health, McGill University - Research Institute and Southern Medical University