This subproject is one of many research subprojects utilizing theresources provided by a Center grant funded by NIH/NCRR. The subproject andinvestigator (PI) may have received primary funding from another NIH source,and thus could be represented in other CRISP entries. The institution listed isfor the Center, which is not necessarily the institution for the investigator.This study will evaluate the efficacy of long-term suppressive therapy with oral acyclovir in infants with HSV infection limited to the skin, eyes and mouth. SEM will determine if oral acyclovir therapy improves neurologic outcome in infants following SEM disease. Assessment of neurologic outcome was chosen as the primary study endpoint based upon data from an earlier CASG study finding that >3 cutaneous recurrences occurring in SEM infants within the first six months of life correlates with abnormal neurologic outcome when measured at 12 months of life. Suggesting that subclinical reactivation of HSV within the CNS may be occurring with this group of infants. Therefore, systematic study of suppressive acyclovir to prevent this presumed subclinical CNS reactivation and thus to improve neurologic outcome at 12 months of age is the primary goal of this investigation. This study will address the significance of a positive cerebrospinal fluid PCR result when all other CSF parameters remain normal. Comparisons will be made between groups with respect to time post-randomization to first positive cerebrospinal fluid PCR result during the initial 12 months of life, and results will be correlated with clinical neurological assessment. The study will determine if continuous administration of oral acyclovir suspension suppresses recurrent skin lesions in infants following SEM disease, and it will confirm the safety of long-term administration of oral acyclovir therapy in a cohort of infants with SEM disease. The effects of suppressive acyclovir therapy on issues of pharmacoeconomic and family infrastructure will be assessed and quantitated.
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