1. Department of Disease Control, London School of Hygiene & Tropical Medicine, London, United Kingdom;
2. Faculté de Medecine Pharmacie d’Odonto-Stomatologie, Université Cheikh Anta Diop, Dakar, Senegal;
3. Service de Parasitologie et Mycologie, Université de Thies, Thies, Senegal;
4. Hospital Administration, Saraya Health Centre, Saraya, Senegal;
5. Service de Parasitologie et Mycologie, Université Gaston Berger de Saint-Louis, Saint-Louis, Senegal