1. Faculty of Sciences and Health Technics, Gamal Abdel Nasser University of Conakry , Conakry , Guinea
2. Direction Regionale de la Santé de Faranah, Ministère de la santé et de l'hygiène publique , Faranah, Guinea
3. Service de Pediatrie, Hospital National Ignace Deen, Ministère de la santé et de l'Hygiène Publique , Conakry, Guinea
4. World Health Organization, Regional Office for the Eastern Mediterranean , Cairo , Egypt
5. Institute of Global Health, Faculty of Medicine, University of Geneva , Geneva , Switzerland
6. Centre for Tropical Medicine and Global Health, University of Oxford , Oxford , UK
7. Management and Programmes Coordination, Ministry of Health , Conakry , Guinea
8. Centre National de Formation et Recherche en Sante Rurale de Maferinyah , Maferinyah, Guinea
9. World Health Organization, Guinea office, Landreah, Corniche Nord , Boîte postale 817, Conakry , Guinea
10. Institut National de Santé Publique, Ministère de la Santé et de l'Hygiène Publique , Conakry, Guinea