A. Krüger†, M. Oldenburg†, C. Chebrolu†, D. Beißer, J. Kolter, A. M. Sigmund, J. Steinmann, S. Schäfer, H. Hochrein, S. Rahmann, H. Wagner, P. Henneke, V. Hornung, J. Buer, C. J. Kirschning Institute of Medical Microbiology, University of Duisburg-Essen, 45147 Essen, Germany Institute of Human Genetics, University of Duisburg-Essen, 45147 Essen, Germany Centre of Chronic Immunodeficiency, University Medical Center Freiburg, 79106 Freiburg, Germany Clinic of Anesthesia, University of Duisburg-Essen, 45147 Essen, Germany Department of Research Immunology, Bavarian Nordic GmbH, 82152 Martinsried, Germany Institute for Medical Microbiology, Immunology and Hygiene, Technical University of Munich, 81675 Munich, Germany Institute of Clinical Chemistry and Clinical Pharmacology, University of Bonn, 53127 Bonn, Germany