Use of Routine Viral Cultures at Delivery to Identify Neonates Exposed to Herpes Simplex Virus

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Abstract
We obtained specimens for viral culture from mothers, infants, or both at the time of 6904 deliveries, without regard to the mothers' history of genital herpes. Herpes simplex virus (HSV) was recovered in cultured specimens from 14 of the 6904 deliveries (0.20 percent); all 14 mothers were asymptomatic. All viral isolates were herpes simplex virus type 2 (HSV-2). Only 1 of the 14 women (7 percent) had a history of genital herpes, whereas 12 (86 percent) had serologic evidence of a previous infection with HSV-2. None of the infants born to these 12 women contracted neonatal herpes. However, one of the two infants born to women with serologic evidence of a primary HSV infection at the time of delivery contracted neonatal herpes.