1. Department of Internal Medicine I University Hospital Bonn Bonn Germany
2. German Center for Infection Research (DZIF), Partner Site Bonn‐Cologne Germany
3. German Clinical Microbiome Study Group (GCMSG) Germany
4. Department of Internal Medicine III Oncology, Hematology, Rheumatology and Immune‐Oncology University Hospital Bonn Bonn Germany
5. German Cancer Research Center (DKFZ) Heidelberg Germany
6. Department I of Internal Medicine Center for Integrated Oncology Aachen Bonn Cologne Duesseldorf University of Cologne Cologne Germany
7. Department of Internal Medicine Infectious Diseases Goethe University Frankfurt Frankfurt am Main Germany
8. Institute for Medical Microbiology, Immunology and Hygiene University of Cologne Cologne Germany
9. UKIM 5 Hematology and Oncology Medical University Innsbruck Innsbruck Austria