1. Department of Infectious Diseases, Region Jönköping County, Jönköping and Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
2. Laboratory Medicine, Region Jönköping County, Jönköping and Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
3. Office for control of Communicable Diseases, Region Jönköping County, Jönköping, Sweden
4. Faculty of Medicine and Health, Department of Laboratory Medicine, National Reference Laboratory for Clostridioides difficile, Clinical Microbiology, Örebro University, Örebro, Sweden
5. Division of Clinical Microbiology, Department of Clinical and Experimental Medicine, Faculty of Health Sciences, Linköping University, Linköping, Sweden
6. Division of Laboratory Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
7. Division of Laboratory Medicine, Oslo University Hospital, Oslo, Norway