Encephalitis in immunocompetent patients due to herpes simplex virus type 1 or 2 as determined by type‐specific polymerase chain reaction and antibody assays of cerebrospinal fluid
1993
A herpes simplex virus tyge 2 (HSV 2) etiology was sought in 93 consecutive cases of herpes simplex encephalitis (HSE) in immunocompetent post neonate patients. Antibodies to HSV 2 glycoprotein G antigen were determined by an enzyme-linked immunosorbent assay (ELISA) and HSV 2 DNA in cerebrospinal fluid (CSF) by a nested polymerase chain reaction (PCR) assay with primer pairs in the glycoprotein G gene. Evidence of HSV 2 infection was found in 6 patients; HSV 2 DNA was demonstrated in CSF and the intrathecal HSV 2 antibody response confirmed the findings. Five of the 6 patients with HSV 2 encephalitis presented a clinical picture, CSF, EEG, and CT findings characteristic of severe HSE. An atypically mild clinical course was seen in one patient
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