1. Laboratory of Vaccinology and Mucosal Immunity
2. Department of Pediatrics, Hôpital Saint-Pierre, Université Libre de Bruxelles, Brussels, Belgium
3. INSERM U629, F-59019 Lille, France
4. Institut Pasteur de Lille, F-59019 Lille, France
5. Immunobiology Clinic, Hôpital Erasme