IL22 and tick-borne encephalitis: The plots presenting cerebrospinal fluid (CSF) total pleocytosis (left) and neutrophil count (right) in tick-borne encephalitis patients on admission to hospital on vertical axes (expressed in cells/μl), plotted against CSF concentrations on cytokines: IL-17A (upper row), IL-22 (middle row), and CXCL2 (lower row) presented on horizontal axes (expressed in pg/ml).