Efficacy of Recombinant Glycoprotein D Subunit Vaccines on the Development of Primary, Recurrent, and Latent Genital Infections with Herpes Simplex Virus Type 2 in Guinea Pigs

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Abstract
Vaccination of guinea pigs with recombinant glycoprotein D (subunit vaccine) from either herpes simplex virus type 1 or type 2 (HSV-1, HSV-2), before intravaginal inoculation with HSV-2, markedly altered viral replication in the vaginal tract and reduced, or completely prevented, the development and spread of external genital lesions. Vaccination with glycoprotein D from HSV-2 prevented the establishment of latent HSV-2 infections in dorsal root ganglia and reduced the frequency of recurrent episodes. For all parameters of efficacy that we tested, vaccination with glycoprotein D from HSV-2 was more effective than was vaccination with protein derived from HSV-1. Vaccination after primary infection had no effect on the frequency or duration of recurrent HSV-2 infections.

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