1. Centre de Santé de Référence et Maternité de la Cité de Mbanza-Ngungu, Mbanza-Ngungu, Bas-Congo, Democratic Republic of the Congo
2. Division of Infectious Diseases, Department of Internal Medicine, University Hospital of Kinshasa, School of Medicine, University of Kinshasa, Kinshasa, Democratic Republic of the Congo
3. Department of Tropical Medicine, University Hospital of Kinshasa, Faculty of Medicine, University of Kinshasa, Kinshasa, Democratic Republic of the Congo
4. Division of Hemato-Oncology and Nephrology, Department of Pediatrics, University Hospital of Kinshasa, School of Medicine, University of Kinshasa, Kinshasa, Democratic Republic of the Congo