1 Univ. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1011-EGID, F-59000 Lille, France.
2 Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, US 41 - UAR 2014 - PLBS, F-59000 Lille, France.
3 Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands; Department of Pediatrics, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands.
4 Univ. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1011-EGID, F-59000 Lille, France. Electronic address: [email protected].