1. Institute of Experimental Virology, Twincore, Centre for Experimental and Clinical Infection Research; a joint venture between the Medical School Hannover (MHH) and the Helmholtz Centre for Infection Research (HZI), Hannover, Germany
2. Department of Medicine B, Muenster University Hospital, Muenster, Germany
3. Department for Internal Medicine, Raphaelsklinik Muenster, Muenster, Germany
4. Medical Clinic I, Klinikum Der Barmherzigen Brüder Trier, Trier, Germany
5. Department of Gastroenterology, Hepatology, Infectious Disease and Endocrinology, Hannover Medical School, Hannover, Germany
6. German Centre for Infection Research (DZIF), partner-site Hannover-Braunschweig, Hannover, Germany
7. RESIST Cluster of Excellence, Hannover Medical School, Hannover, Germany
8. Department of Gastroenterology, Hepatology and Transplant Medicine, Medical Faculty, University of Duisburg-Essen, Essen, Germany
9. Department of Gastroenterology, Medical Center Osnabrueck, Osnabrueck, Germany