The U.S. Preventive Services Task Force recommends against routine serological screening for herpes simplex virus (HSV) in asymptomatic pregnant women at any time during pregnancy to prevent neonatal HSV infection.
U.S. Preventive Services Task Force. Genital Herpes: Screening recommendation statement [Internet]. 2005 Mar [cited 2014 Jan 8]. Available from: http://www.uspreventiveservicestaskforce.org/uspstf05/herpes/herpesrs.htm