1. Department of Infectious Diseases, Institute of Biomedicine at Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden;
2. Swedish Reference Group for Antiviral Therapy (RAV), Stockholm, Sweden;
3. Department of Infectious Diseases, Örebro University, Örebro, Sweden;
4. Department of Medicine, Division of Infectious Diseases, Karolinska Institute at Karolinska University Hospital Huddinge, Stockholm, Sweden