1. Central Institute of Mental Health, Department of Psychiatry and Psychotherapy, Sleep Laboratory, Medical Faculty Mannheim University of Heidelberg Heidelberg Germany
2. Institute for Immunodeficiency, Medical Centre and Faculty of Medicine Albert‐Ludwigs‐University Freiburg Germany
3. Institute of Epidemiology and Medical Biometry Ulm University Ulm Germany
4. Department of Health Protection, Infection Control and Epidemiology Baden‐Wuerttemberg Federal State Health Office, Ministry of Social Affairs, Health and Integration Stuttgart Stuttgart Germany
5. Division of Infectious Diseases, Department of Internal Medicine I University Hospital Tübingen Tübingen Germany
6. Department of Internal Medicine IV University Hospital Heidelberg Heidelberg Germany
7. Division of Sports and Rehabilitation Medicine, Department of Medicine Ulm University Hospital Ulm Germany
8. Division of Infectious Diseases, Department of Medicine II, Medical Centre and Faculty of Medicine Albert‐Ludwigs‐University Freiburg Germany