1. Department of Epidemiology; Tulane University School of Public Health and Tropical Medicine; New Orleans LA USA
2. Laboratoire de Parasitologie; Faculté de Médecine; Université Libre de Bruxelles (ULB); Bruxelles Belgium
3. Department of Tropical Medicine; Tulane University School of Public Health and Tropical Medicine; New Orleans LA USA
4. National Institute of Parasitology ‘Dr. Mario Fatala Chaben’; Buenos Aires Argentina