1. Department of Clinical Microbiology, Kalmar County Hospital, Kalmar, Sweden
2. Department of Bacteriology, Swedish Institute of Disease Control (SMI), Stockholm, Sweden
3. Department of Clinical Microbiology, Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
4. Medical Microbiology, Department of Laboratory Medicine, Lund University, Malmö, Sweden
5. Department of Clinical Microbiology, Växjö Hospital, Växjö, Sweden; and Department of Medical Sciences, Uppsala University, Uppsala, Sweden