1. Department of Infectious Diseases, Kalmar County Council, Linköping University, Kalmar, Sweden
2. Department of Animal Environment and Health, Swedish University of Agricultural Sciences, Skara, Sweden
3. Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
4. Department of Microbiology, National Veterinary Institute SVA, Uppsala, Sweden
5. Department of Biomedical Sciences and Veterinary Public Health, Swedish University of Agricultural Sciences, Uppsala, Sweden
6. Zoonosis Science Center, Department of Medical Sciences, Uppsala University, Uppsala, Sweden.