1. Infectious Diseases, Department of Medical Sciences, Uppsala University , Akademiska Sjukhuset Uppsala Sweden
2. Clinic of Infectious Diseases, County Hospital , Kalmar, Sweden
3. Karolinska Institute, Karolinska University Hospital Institution of Medicine, Unit for Infectious Diseases Stockholm, Sweden
4. Karolinska Institutet, Karolinska University Hospital Department of Clinical Microbiology Stockholm, Sweden
5. CALAB Medical Laboratories , Stockholm, Sweden