1. Department of Infectious Diseases, Insitute of Biomedicine, University of Gothenburg, Gothenburg, Sweden
2. Department of Infectious Diseases, Sahlgrenska University Hospital, Gothenburg, Sweden
3. Department of Infectious Diseases, Skåne University Hospital, Lund, Sweden
4. Department of Medicine, Division of Infectious Diseases, Karolinska Institutet and Karolinska University Hospital Huddinge, Stockholm, Sweden