1. Infection Biology Research Program, Department of Virology, Haartman Institute, University of Helsinki, Finland
2. Tampere University Hospital, Tampere, Finland
3. Medical School, University of Tampere, Tampere, Finland
4. Infection Biology Research Program, Department of Bacteriology and Immunology, Haartman Institute, University of Helsinki, Finland
5. HUSLAB, Division of Clinical Microbiology, Helsinki, Finland
6. Division of Microbiology and Epidemiology, Department of Basic Veterinary Sciences, Faculty of Veterinary Medicine, University of Helsinki, Finland