1. Department of Infectious Diseases, University of Gothenburg, Gothenburg, Sweden.
2. Clinical Microbiology, Sahlgrenska University Hospital, Gothenburg, Sweden.
3. ENT Department, Capio Lundby Hospital, Gothenburg, Sweden.
4. Department of Clinical Chemistry and Transfusion Medicine, University of Gothenburg, Gothenburg, Sweden.
5. Clinical Chemistry, Sahlgrenska University Hospital, Gothenburg, Sweden.
6. Department of Microbiology and Immunology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.