1. Hôpital Universitaire des Enfants Reine Fabiola, Université Libre de Bruxelles (ULB), Brussels, Belgium
2. AIDS Reference Laboratory, Université Catholique de Louvain, Brussels, Belgium
3. Institute of Experimental and Clinical Research (IREC), Université Catholique de Louvain, Brussels, Belgium
4. Department of Internal Medicine, Infectious Diseases and Tropical Medicine Unit, Cliniques Universitaires St Luc, Brussels, Belgium
5. Medical Molecular Biology Unit, Cliniques Universitaires St Luc, Brussels, Belgium
6. Pediatric Infectious Diseases, General Pediatrics, Pediatric Department, Cliniques Universitaires St Luc, Brussels, Belgium