1. Faculty of Medicine and Health, Örebro University, Örebro, Sweden
2. Department of Clinical Microbiology F 72, Karolinska University Hospital Huddinge, Stockholm, Sweden
3. Division of Clinical Microbiology, Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
4. Department of Infectious Diseases, Faculty of Medicine and Health, Örebro University, Örebro, Sweden