1. Kalmar County Hospital, Kalmar, SwedenLinköping Medical University, Linköping, Sweden
2. Swedish Institute for Infectious Disease Control, Stockholm, Sweden
3. Sahlgrenska University Hospital, Göteborg, Sweden
4. Kalmar County Hospital, Kalmar, Sweden
5. Kalmar University, Kalmar, Sweden
6. Kalmar University, Kalmar, SwedenUppsala University, Uppsala, Sweden