1. Division of Medical Microbiology, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
2. Division of Clinical Immunology, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
3. Department of Molecular Biology, Umeå University, Umeå, Sweden
4. Division of Infectious Diseases, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
5. Department of Microbiology, Ryhov County Hospital, Jönköping, Sweden