1 Department of Infectious Diseases, Karlstad Hospital and Centre for Clinical Research, Värmland County Council, Karlstad, Sweden and School of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro, Sweden.
2 Department of Infectious Diseases, Skåne University Hospital, Lund and Department of Clinical Sciences, Division of Infection Medicine, Lund University, Lund, Sweden.