Abstract
The guinea pig model of genital herpes simplex virus infection has proven useful in the evaluation of antiviral drugs. We have recently demonstrated that recurrent herpetic infections can be induced in latently infected guinea pigs by ultraviolet irradiation. In this report we have examined the effect of acyclovir on ultraviolet radiation-induced recurrent genital herpes. Prophylactic topical acyclovir decreased the severity but not the incidence of ultraviolet radiation-induced recurrences while intraperitoneal acyclovir initiated before ultraviolet irradiation reduced both the incidence and severity of induced recurrences. When treatment was begun after ultraviolet exposure, neither topical nor intraperitoneal acyclovir were effective in reducing the incidence or severity of induced recurrent disease. The effectiveness of acyclovir in the control of induced recurrent genital infections in the guinea pig is similar to what has been observed in human trials. This model of ultraviolet radiation-induced recurrent herpes simplex virus infection should prove useful in the evaluation on new putative antiviral drugs.
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