1. Department I of Internal Medicine, Division of Infectious Diseases, Faculty of Medicine and University Hospital Cologne University of Cologne Cologne Germany
2. Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine University of Cologne Cologne Germany
3. German Centre for Infection Research (DZIF) Site Bonn‐Cologne Cologne Germany
4. Institute of Virology, Faculty of Medicine and University Hospital Cologne University of Cologne Cologne Germany