[1] Prince Leopold Institute of Tropical Medicine,Department of Parasitology
[2] Prince Leopold Institute of Tropical Medicine,Department of Animal Health
[3] Médecins Sans Frontières Belgium,Medical Department
[4] Ministry of Health,Programme de Lutte contre les Maladies Transmissibles et Carentielles
[5] University of Antwerp,Department of Biomedical Sciences, Faculty of Pharmaceutical, Veterinary and Biomedical Sciences