CXCL13 and Lyme disease: However, CSF CXCL13 (a B-cell-attracting chemokine) was, as in 11 other TBE cases in this cohort (n = 12, median 32 pg/mL, range 14–240 pg/mL), below the cut-off shown earlier by us to differentiate between neuroborreliosis and other inflammatory CNS diseases [8].