have also found inflammatory markers elevated in the CSF during VZV-related meningitis, including interferon gamma, interleukins IL-6, IL-8, IL-10, IL-17F, IL-1RA, chemokines CXCL-9, CXCL-10, CCL-2 and G-CSF (39). This evidence concerns the gene CCL2 and infectious meningitis.