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Projected cost-savings with herpes simplex virus screening in pregnancy: towards a new screening paradigm


Objectives Herpes simplex virus (HSV) infections in newborns are an uncommon but potentially devastating consequence of genital HSV infection in women. Current practice focuses on preventing perinatal transmission by women with prevalent HSV, but transmission risk is greatest when genital HSV is acquired for the first time late in pregnancy. The objective of this study was to assess the effectiveness and cost effectiveness of identifying pregnant women at risk of de novo HSV acquisition as a means of preventing vertical HSV transmission.

Methods A Bayesian decision tree model was parameterised using the best available health and economic data relating to HSV in pregnancy and was used to evaluate the cost effectiveness of screening to identify individuals susceptible to HSV infection in a hypothetical cohort of 100 000 pregnant women in their second trimester of pregnancy. Final outcomes were the projected incidence of maternal and neonatal HSV, quality-adjusted life expectancy and life-time costs associated with neonatal HSV.

Results In the absence of testing, model projected incidence of neonatal HSV was 34 cases per 100 000 births, similar to available surveillance data. Screening pregnant women and their partners was projected to decrease the incidence of HSV-1 and HSV-2 infections in women and infants and to save costs. These findings were robust under alternative assumptions and in wide-ranging sensitivity analyses.

Conclusions The use of accurate and relatively inexpensive serological tests for HSV to identify women vulnerable to incident HSV infection in pregnancy has the potential to reduce neonatal HSV incidence and reduce health-related costs.

  • Cost–utility analysis
  • economic analysis
  • herpes simplex virus
  • mathematical model
  • neonates
  • pregnancy
  • screening
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