Abstract
Objective: To differentiate by enzyme-linked immunosorbent assay (ELISA) using type-specific glycoprotein G herpes simplex virus (HSV) type 1 and type 2 in serum collected from patients with HSV central nervous system (CNS)infections.Methods: HSV 1 and 2 typing in convalescent sera of 17 patients with HSV acute encephalitis, myelitis, or meningitis was determined by the type-specific IgG ELISA kit (Gull Laboratory, Inc.). HSV CNS infections were diagnosed by polymerase chain reaction (PCR) or conventional serologic tests from acute to convalescent stages.Results: In 13 of 17 patients, HSV type 1 and HSV type 2 antibodies were positive; 11 patients with HSV type 1 and 2 patients with HSV type 2 were found. All 10 patients with encephalitis showed equivocal or positive results for HSVtype 1. In two of three cases of myelitis, HSV type 1 was demonstrated. Each case of myelitis and meningitis reacted to both types 1 and 2.Conclusion: These data suggest that the kit is useful for type differentiation of HSV CNS infections from convalescent sera, and can play a supplementary role in HSV typing by PCR or previous serologic tests.
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