[1] University of Kinshasa,Department of Basic Sciences, Faculty of Medicine
[2] Catholic University of Louvain,School of Public Health & Research Institute of Health and Society
[3] University of Kinshasa,School of Public Health, Faculty of Medicine
[4] University of Mbujimayi,Department of Public Health, Faculty of Medicine
[5] University of Liège,Laboratory of Clinical Microbiology
[6] University of Kinshasa,Department of Internal Medicine, Faculty of Medicine