1. Infectious Diseases Research Unit, Department of Clinical Sciences, Lund University, Malmö, Sweden
2. Department of Infectious Diseases, Örebro University Hospital, Örebro, Sweden
3. Department of Medical Microbiology, Dermatology and Infection, Lund University, Lund, Sweden
4. Department of Analysis and Prevention, Unit for Antibiotics and Infection Control, Swedish Institute for Communicable Disease Control, Solna, Sweden