1. Institute of Hygiene, University Hospital Münster, 48149 Münster, Germany
2. Hygiene and Environmental Medicine, University Hospital Essen, 45147 Essen, Germany
3. Institute of Hygiene and Environmental Medicine, Charité—Universitätsmedizin Berlin, 12203 Berlin, Germany
4. Institute of Microbiology and Epizoonotics, Freie Universität Berlin, 14163 Berlin, Germany
5. Veterinary Centre for Resistance Research (TZR), Freie Universität Berlin, 14163 Berlin, Germany
6. Institute for Hygiene and Environmental Medicine, University Medicine Greifswald, 17489 Greifswald, Germany
7. Division Gastroenterology, Infectious Diseases and Rheumatology, Medical Department, Charité Universitätsmedizin Berlin, 12200 Berlin, Germany