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Serum anti-HSV antibody levels. Anti-HSV antibody titers in serum were determined by ELISA (Table 1) at various times (months) pre- and post-G207 injection. Optical density (OD) values of ≥0.4 are positive, and values between 0.17 and 0.39 are equivocal. All preinjection sera had OD values of 0.
