[1] Centre Pasteur of Cameroon,Department of Epidemiology and Public Health
[2] University of Paris Sud XI,School of Public Health, Faculty of Medicine
[3] University of Yaoundé 1,Faculty of Medicine and Biomedical Sciences
[4] Agence Nationale de Recherche sur le Sida et les hépatites virales,Department of Pediatrics, Faculty of Medicine and Biomedical Sciences
[5] University of Yaoundé 1,Division of Renal Medicine, Brigham and Women’s Hospital
[6] Harvard Medical School,Department of Public Health, Faculty of Medicine and Biomedical Sciences
[7] University of Yaoundé 1,Department of Disease, Epidemics and Pandemics Control
[8] Ministry of Public Health,undefined