[1] Lund Univ, Dept Clin Sci, Lund, Sweden
[2] Lund Univ, Dept Lab Med, Lund, Sweden
[3] Lund Univ, Dept Expt Med Sci, Lund, Sweden
[4] AstraZeneca R&D, Dept Neurosci CNS & Pain, Sodertalje, Sweden
[5] Univ Gothenburg, Dept Infect Dis, Gothenburg, Sweden
[6] Univ Oxford, Nuffield Dept Med, Oxford, England
[7] Karolinska Inst, Dept Microbiol Tumor & Cell Biol, Stockholm, Sweden