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