[1] Univ Gothenburg, Sahlgrenska Acad, Inst Biomed, Dept Infect Dis, Guldhedsgatan 10A, S-41346 Gothenburg, Sweden
[2] Sahlgrens Univ Hosp, Dept Clin Microbiol, Gothenburg, Sweden
[3] Univ Gothenburg, Sahlgrenska Acad, Inst Med, Dept Rheumatol & Inflammat Res, Gothenburg, Sweden
[4] Univ Gothenburg, Sahlgrenska Acad, Inst Clin Sci, Dept Pediat, Gothenburg, Sweden