Evidence map›Paper›PMID 39658199›Full record

SynthesisSexually transmitted infections2025

Estimated global and regional incidence and prevalence of herpes simplex virus infections and genital ulcer disease in 2020: mathematical modelling analyses.

Manale Harfouche, Sawsan AlMukdad, Asalah Alareeki, Aisha M M Osman, Sami Gottlieb, Jane Rowley, Laith J Abu-Raddad, Katharine J Looker

Abstract readSystematic Review
In one paragraph

Synthesis in Sexually transmitted infections, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 58 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
58citing papers in PubMed, 4 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

58 citing papers in PubMed, 4 syntheses or guidelines pooled it.

  1. Pooled it
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  5. Trial
  6. Review
  7. Article
  8. Cell death network regulation in HSV infection: immune evasion versus host defense.Apoptosis : an international journal on programmed cell death · 2026
    Review
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  17. Beyond the Barrier: Epithelial Cells as Immune Sentinels in the Female Genital Tract.American journal of reproductive immunology (New York, N.Y. : 1989) · 2026
    Review
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Manale HarfoucheInfectious Disease Epidemiology Group, Weill Cornell Medicine - Qatar, Doha, Qatar.
Sawsan AlMukdadInfectious Disease Epidemiology Group, Weill Cornell Medicine - Qatar, Doha, Qatar.
Asalah AlareekiInfectious Disease Epidemiology Group, Weill Cornell Medicine - Qatar, Doha, Qatar.
Aisha M M OsmanInfectious Disease Epidemiology Group, Weill Cornell Medicine - Qatar, Doha, Qatar.
Sami GottliebDepartment of Sexual and Reproductive Health and Research, World Health Organization, Geneva, GE, Switzerland.
Jane RowleyGlobal HIV, Hepatitis and Sexually Transmitted Infections Programmes, World Health Organization, Geneva, Switzerland.
Laith J Abu-RaddadInfectious Disease Epidemiology Group, Weill Cornell Medicine - Qatar, Doha, Qatar lja2002@qatar-med.cornell.edu.ORCID 0000-0003-0790-0506
Katharine J LookerPopulation Health Sciences, University of Bristol, Bristol, UK.

Funding

World Health Organization 001
6 · The paper itself

Abstract

objectivesGenital herpes simplex virus (HSV) type 1 and 2 infections are lifelong and can cause symptomatic genital ulcer disease (GUD). HSV-2 almost always causes sexually transmitted genital infection, while HSV-1 mainly causes oral infection but can be sexually transmitted to cause genital infection. This study estimated genital infection with both HSV types and associated GUD globally in 2020, breaking down the data by WHO region and sex for females and males.

methodsA calibrated mathematical model was employed to generate estimates for the incidence and prevalence of HSV-2 infection, genital HSV-1 infection, and GUD caused by both HSV types. Estimates for non-genital infections caused by HSV-1 were also generated. Model input was derived from a comprehensive systematic review and meta-analyses of HSV prevalence data for all WHO regions.

resultsGlobally in 2020 there were 25.6 million (95% uncertainty interval (UI) 23.1-29.4 million) people aged 15-49 years with new HSV-2 infections, and 519.5 million (95% UI 464.3-611.3 million), or 13.3% (95% UI 11.9-15.6%), with existing (prevalent) HSV-2 infections. In addition, there were 16.8 million (95% UI 10.6-22.4 million) people aged 15-49 years with new genital HSV-1 infections and 376.2 million (95% UI 235.6-483.5 million), or 10.2% (95% UI 6.4-13.1%), with prevalent genital HSV-1 infections. The estimated number of people aged 15-49 years with at least one episode of HSV-attributable GUD in 2020 was 187.9 million (95% UI 116.0-291.8 million) for HSV-2, and 16.7 million (95% UI 9.3-25.2 million) for HSV-1, totalling 204.6 million (95% UI 132.3-306.5 million).

conclusionGenital HSV infections have a high incidence and prevalence worldwide, contributing to a significant GUD disease burden. New prevention and treatment measures, such as prophylactic and therapeutic HSV vaccines, are needed critically to control HSV infections and reduce the associated disease burden.

Indexed as

Herpes GenitalisHerpes SimplexUlcerAdolescentAdultFemaleGlobal HealthHerpesvirus 1, HumanHerpesvirus 2, HumanHumansIncidenceMaleMiddle AgedModels, TheoreticalPrevalenceYoung AdultEpidemiologyGENITAL HERPESHERPES SIMPLEX

Identifiers

PMID39658199
PMCPMC12128767

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.