1. First Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg
2. German Center for Infection Research, partner site Hamburg-Lübeck-Borstel-Riems
3. Division of Infectious Diseases, University Medical Center Hamburg-Eppendorf
4. Leibniz Institute for Experimental Virology, Heinrich Pette Institute, Hamburg
5. Division of Infectious Diseases, Department of Medicine II, Ludwig Maximilian University, Munich
6. Institute for Virology, Philipps University Marburg
7. German Center for Infection Research, partner site Gießen-Marburg-Langen
8. Institute of Immunology, University Duisburg-Essen, Essen, Germany