Abstract
Abstract
Objectives: Genital 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 World Health Organization (WHO) region and sex for females and males.
Methods: A 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.
Results: Globally in 2020 there were 25.6 million (95% uncertainty interval (UI): 23.1-29.4 million) people aged 15 to 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 to 49 years with at least one episode of HSV-attributable genital ulcer disease 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).
Conclusion: Genital 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 critically needed to control HSV infections and reduce the associated disease burden.
Objectives: Genital 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 World Health Organization (WHO) region and sex for females and males.
Methods: A 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.
Results: Globally in 2020 there were 25.6 million (95% uncertainty interval (UI): 23.1-29.4 million) people aged 15 to 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 to 49 years with at least one episode of HSV-attributable genital ulcer disease 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).
Conclusion: Genital 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 critically needed to control HSV infections and reduce the associated disease burden.
| Original language | English |
|---|---|
| Article number | sextrans-2024-056307 |
| Number of pages | 10 |
| Journal | Sexually Transmitted Infections |
| Early online date | 10 Dec 2024 |
| DOIs | |
| Publication status | E-pub ahead of print - 10 Dec 2024 |
Bibliographical note
Publisher Copyright:© Author(s) (or their employer(s)) 2024.