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USPSTF recommends against routine herpes screening for asymptomatic teens and adults


 

FROM JAMA

Asymptomatic adults, teens, and pregnant women with no known history or symptoms of herpes infection need not undergo routine screening, according to the latest recommendation from the U.S. Preventive Services Task Force.

The 2023 recommendation reaffirms the conclusion from 2016, wrote Carol M. Mangione, MD, of the University of California, Los Angeles, and members of the task force.

“Currently, routine serologic screening for genital herpes is limited by the low predictive value of the widely available serologic screening tests and the expected high rate of false-positive results likely to occur with routine screening of asymptomatic persons in the U.S.,” the authors said.

In the recommendation, published in JAMA, the authors affirmed with moderate certainty and a grade D recommendation that the risks of routine screening for herpes simplex virus (HSV) in asymptomatic individuals outweigh the benefits.

The task force found no new evidence on the accuracy of serologic screening tests, the benefits of early detection and treatment, or on the harms of screening and treatment since the 2016 review of 17 studies in 19 publications, with data from more than 9,000 individuals.

Studies of the accuracy of serologic screening for herpes simplex virus-2 in the 2016 report mainly reflect populations with higher HSV-2 prevalence and are of limited applicability to the U.S. primary care population, the authors wrote. Evidence from the 2016 review also showed limited and inconsistent support for the early identification and treatment of HSV-2 in asymptomatic individuals, including those who were pregnant.

No new evidence has emerged since 2016 regarding harms of screening or treating genital herpes in asymptomatic individuals, the authors noted. “Based on previous evidence, the USPSTF estimated that using the widely available serologic tests for HSV-2, nearly 1 of every 2 diagnoses in the general U.S. primary care population could be false,” they said. The task force also concluded that the low accuracy of the current tests could prompt unnecessary treatment for individuals with false-positive diagnoses, as well as social and emotional harm for these individuals.

During a period of public comment from Aug. 16, 2022, to Sept. 12, 2022, individuals expressed concerns that the recommendation against routine screening showed a disinclination to take herpes seriously, and concerns that asymptomatic individuals could transmit the infection to sexual partners, the authors said. However, the estimated seroprevalence of HSV-1 and HSV-2 has declined in recent decades, and other comments supported the USPSTF’s analysis of the evidence and noted their consistency with current clinical practice.

The task force noted that research gaps remain and recognized the need to improve screening and treatment of genital herpes to prevent symptomatic episodes and transmission. Specifically, the USPSTF recommendation calls for more research to assess the accuracy of screening tests, to enroll more study participants from populations disproportionately affected by HSV, to examine the effect of behavioral counseling, and to clarify associations between HSV and pregnancy outcomes. In addition, the task force called for research to create an effective vaccine to prevent genital HSV infection and to develop a cure.

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