1 Department of Nephrology and Infectious Diseases, AZ Sint-Jan Brugge-Oostende AV, Bruges, and Department of Internal Medicine and Pediatrics, Ghent University.
2 Department of Pathology, AZ Sint-Jan Brugge-Oostende AV, Bruges.
3 Primary Immunodeficiency Research Lab, Jeffrey Modell Diagnosis and Research Center, Ghent University Hospital, and Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium.