1. Department of Infectious Diseases, Örebro University Hospital, Örebro, Sweden;
2. School of Health and Medical Sciences, Örebro University, Örebro, Sweden;
3. Department of Laboratory Medicine, Örebro University Hospital, Örebro, Sweden;
4. Department of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden;
5. Department of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden