1 Departments of Epidemiology, Infectious Diseases, and Microbiology, University of Pittsburgh, Pittsburgh, PA, USA; Departments of Epidemiology and International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 15261, USA; Department of Medicine, Division of Infectious Diseases, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa. Electronic address: [email protected].
2 Institut National de la Recherche Biomedicale, Kinshasa, DR Congo.
3 Fondation Congolaise de la Recherche Médicale, Brazzaville, Republic of the Congo; Institute for Tropical Medicine, University of Tübingen, Tübingen, Germany.