1. Department of General Practice University Medical Center Göttingen/Georg‐August‐University Göttingen Germany
2. Department of Clinical Immunology and Rheumatology Hannover Medical School Hannover Germany
3. German Center for Infection Research, partner site Hanover‐Braunschweig Hannover Germany
4. Department of Pediatrics, Neonatology, and Allergology Hannover Medical School Hannover Germany
5. Department of General Practice University Medical Center Würzburg Würzburg Germany