US Preventive Services Task Force Recommendations on Genital Herpes Screening

Overview of Genital Herpes

The US Preventive Services Task Force (USPSTF) advises against routine screening for genital herpes infection in asymptomatic adults, citing that the potential harms of screening surpass the benefits. Genital herpes, a sexually transmitted infection (STI), is primarily caused by two variants of the Herpes Simplex Virus (HSV), most frequently by HSV-2. In the United States, approximately 1 in 6 individuals aged 14 to 49 is affected by this infection.

Characteristics of Genital Herpes

Genital herpes typically does not have an extended asymptomatic phase before symptoms manifest, and while there is currently no cure for the infection, treatment options are available to manage outbreaks. HSV-2 can be identified through serologic screening methods; however, these techniques often exhibit low specificity and a substantial false-positive rate. Additionally, screening for HSV-1 is not definitive for the site of infection, whether oral or genital.

USPSTF Statement on Screening

The USPSTF published its recommendation on routine HSV screening for asymptomatic adults in the Journal of the American Medical Association. The task force highlighted that the sensitivity and specificity of HSV screening tests are inadequate, with nearly half of positive results being false positives. They further emphasized that early detection offers little benefit, as no cure exists, and the primary risk from active infection pertains to pregnant women and their newborns during childbirth. Most neonatal infections occur when a mother is newly infected or experiencing an outbreak at the time of delivery.

Potential Consequences of Screening

Receiving a positive test result for genital herpes can lead to social and emotional distress, along with unnecessary treatment. As a result, the USPSTF does not endorse the routine screening of asymptomatic adults for HSV. This recommendation aligns with the guidance provided by the American Academy of Family Physicians, the American Congress of Obstetricians and Gynecologists (ACOG), and the Centers for Disease Control and Prevention (CDC).

Guidance for Pregnant Women

The CDC and ACOG recommend cesarean delivery for women with active HSV infections during labor. They also advocate for HSV screening in cases of recurrent atypical symptoms or among individuals with HIV infection or those at high risk for HIV. Additionally, the CDC suggests offering suppressive therapy to infected pregnant women after 36 weeks of gestation.

Future Research Directions

While the USPSTF does not support routine screening of asymptomatic adults for genital herpes, they call for further research to develop more sensitive and specific testing methods. They also emphasize the importance of behavioral interventions to mitigate the risk of infection, particularly for pregnant women.

Author

Written By: Dr. Fanni R. Eros