Key Takeaways
- CDC STI guideline recommends NAAT for genital herpes due to higher sensitivity than culture (quantified by performance comparisons in guideline)
- FDA-cleared NAATs for HSV are used for genital ulcer disease workups; NAATs offer high sensitivity compared with culture (diagnostic test performance quantified by FDA labeling)
- In 2022–2023, FDA approved at least one new NAAT assay platform for HSV/other pathogens that expands multiplex testing capabilities (regulatory approvals quantified)
- In that same trial, median acquisition per 100 person-years was 1.2 with valacyclovir vs 2.2 with placebo (HSV-2 genital transmission)
- A meta-analysis found HSV-1 prevalence is higher in individuals with more sexual partners, indicating dose-response relationship between number of partners and genital HSV-1 acquisition (study synthesis)
- In a cohort study, the annual incidence of HSV-1 acquisition increased with higher partner turnover, with rates up to several per 1,000 person-years depending on exposure group (study)
- In the same trial, median time to first recurrence was longer with valacyclovir than with placebo (clinical endpoints quantified)
- HSV-1 is responsible for a substantial proportion of herpes labialis cases in immunocompetent adults (proportion quantified in clinical review)
- High-dose oral antivirals for severe HSV infection include acyclovir 800 mg 5 times daily (dose quantified in clinical reference)
- Herpes simplex infections contribute to economic burden via direct medical costs and productivity loss; in a US modeling study, total annual costs attributed to herpes simplex were estimated in the billions (model estimate)
- Global antivirals market size reached $47.2 billion in 2022 (WHO/industry-market tracker aggregates)
- In a cost-effectiveness model, suppressive therapy reduces downstream costs by lowering recurrence-related visits (modeled economic impact)
NAAT testing, plus antivirals like valacyclovir, improves genital HSV outcomes and helps curb major global costs.
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HSV-2 transmission: valacyclovir vs placebo
A trial showed lower median HSV-2 genital transmission acquisition with valacyclovir compared with placebo.
Cite This Report
This report is designed to be cited. We maintain stable URLs and versioned verification dates. Copy the format appropriate for your publication below.
Christopher Morgan. (2026, February 13). Herpes 1 Statistics. Gitnux. https://gitnux.org/herpes-1-statistics
Christopher Morgan. "Herpes 1 Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/herpes-1-statistics.
Christopher Morgan. 2026. "Herpes 1 Statistics." Gitnux. https://gitnux.org/herpes-1-statistics.
Sources & references
24 datasets cited across this report · attribution is report-level
+16 additional datasets cited (not shown individually)

