Christian Medical College, Christian Medical College, University of Iceland, Institut de Recherche Clinique du Bénin, Lions SightFirst Eye Hospital, Université Paris Cité, University of Washington, London School of Hygiene & Tropical Medicine - Faculty of Infectious and Tropical Diseases, Université Paris Cité, Institut de Recherche Clinique du Bénin, Christian Medical College, Christian Medical College, Lions SightFirst Eye Hospital, London School of Hygiene & Tropical Medicine, Natural History Museum, Université Paris Cité, Christian Medical College, Institut de Recherche Clinique du Bénin, University of Washington, RTI International, Smith College - Department of Biological Sciences, London School of Hygiene & Tropical Medicine, Christian Medical College, Kamuzu University of Health Sciences, Lions SightFirst Eye Hospital, University of Washington, Smith College - Department of Biological Sciences, London School of Hygiene & Tropical Medicine and Johns Hopkins University

Malawi Epidemiology and Intervention Research Unit (MEIRU), University of Glasgow - Medical Research Council (MRC), Malawi Epidemiology and Intervention Research Unit (MEIRU), Lancaster University, Lancaster University, London School of Hygiene & Tropical Medicine, Malawi Epidemiology and Intervention Research Unit (MEIRU), Malawi Epidemiology and Intervention Research Unit (MEIRU), Kamuzu University of Health Sciences, Kamuzu University of Health Sciences, Kamuzu University of Health Sciences, University of Glasgow - Medical Research Council (MRC), University of Glasgow - Centre for Virus Research (CVR), Public Health Institute of Malawi, Malawi Epidemiology and Intervention Research Unit (MEIRU) and Malawi Epidemiology and Intervention Research Unit (MEIRU)