1 Faculty of Medicine and University Hospital of Cologne, Department I of Internal Medicine, Centre for Integrated Oncology Aachen Bonn Cologne Düsseldorf (CIO ABCD), German CLL Group (GCLLSG), University of Cologne, Cologne, Germany. sibylle.mellinghoff@uk-koeln.de.
2 German Centre for Infection Research (DZIF), partner site Bonn-Cologne, Cologne, Germany. sibylle.mellinghoff@uk-koeln.de.
3 Department of Clinical Immunology of Infectious Diseases, Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany. sibylle.mellinghoff@uk-koeln.de.
4 Faculty of Medicine and University Hospital of Cologne, Department I of Internal Medicine, Centre for Integrated Oncology Aachen Bonn Cologne Düsseldorf (CIO ABCD), German CLL Group (GCLLSG), University of Cologne, Cologne, Germany.
5 Department of Clinical Immunology of Infectious Diseases, Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany.
6 Division of Infectious Diseases, First Department of Medicine, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany.
7 German Centre for Infection Research (DZIF), Partner Site Hamburg-Lübeck-Borstel-Riems, Hamburg, Germany.
8 Institute of Virology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany.
9 Centre for Molecular Medicine Cologne, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany.