1. Department of Clinical Sciences, Institute of Tropical Medicine Antwerp, Antwerp, Belgium;
2. Leishmaniasis Research and Treatment Center, University of Gondar, Gondar, Ethiopia;
3. Gondar University Hospital, University of Gondar, Gondar, Ethiopia;
4. Public Health Department, Médecins Sans Frontières, Amsterdam, The Netherlands;
5. Department of Epidemiology and Biostatistics, University of Gondar, Gondar, Ethiopia