1. Section of Clinical Microbiology, Department of Medical Sciences, Uppsala University , Uppsala, Sweden
2. Zoonosis Science Center, Department of Medical Biochemistry and Microbiology, Uppsala University , Uppsala, Sweden
3. Laboratory of Clinical Microbiology, Uppsala University Hospital , Uppsala, Sweden
4. Department of Veterinary Biosciences and Virology, University of Helsinki and Helsinki University Hospital , Helsinki, Finland
5. Department of Viroscience, Erasmus MC , Rotterdam, The Netherlands