“…(2) The serological pro®le for CMV antibodies (stepwise increase of IgG that persisted after 4 months and parallel decrease of IgM, reaching negative value after initial increase) along with the CMV-DNA detection both in the serum and PBLs, evidenced a recent primary infection by CMV. 11 Although without tissue biopsy, it may be di cult or impossible to distinguish between direct spinal cord viral invasion and tissue injury, 5,10 CMVinduced vasculitis 5 or post-infectious immunemediated process, 5,12 our patient's impressive clinical recovery and complete MRI resolution, along with the negative CMV-DNA detection in the CSF, rather support the latter pathogenetic mechanism. (3) EBV-DNA was detected in PBLs but not in the serum or the CSF and was accompanied by increased serum titers of NA-IgG, EA-IgG and IgM antibodies that all progressively declined and were found negative (EA-IgG, IgM) or very low (NA-IgG) at 4 months.…”