1. Unit of Infectious Diseases Epidemiology, Department of Clinical Microbiology, Örebro Medical Centre Hospital, Örebro, Sweden, , Department of Caring Sciences, Örebro University, Sweden, Division of Social and Preventive Medicine and Public Health, Department of Health and Environment, Faculty of Health Science, Linköping University, Sweden
2. Unit of Infectious Diseases Epidemiology, Department of Clinical Microbiology, Örebro Medical Centre Hospital, Örebro, Sweden
3. Division of Social and Preventive Medicine and Public Health, Department of Health and Environment, Faculty of Health Science, Linköping University, Sweden