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Genital Herpes

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Genital herpes is a sexually transmitted infection primarily caused by herpes simplex virus type 2 (HSV-2), though herpes simplex virus type 1 (HSV-1) is increasingly implicated in genital infections, particularly among younger populations. Transmission occurs mainly through sexual contact, with asymptomatic viral shedding serving as a major route of spread. This characteristic makes HSV-2 difficult to control at a population level, as individuals may unknowingly transmit the virus even in the...

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Herpes simplex virus type 2: epidemiology and management options in developing countries.

G Paz-Bailey¹, M Ramaswamy, S J Hawkes

¹Global AIDS Program for Central America National Center for HIV, STD and TB Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia, USA. gpbz@cdc.gov

Postgraduate Medical Journal

|July 23, 2008

Summary

Genital herpes simplex virus type 2 (HSV-2) causes widespread genital ulcer disease (GUD). Urgent need for HSV-2 vaccines and better diagnostics, especially in low-income countries, to curb transmission and reduce HIV co-infection risks.

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Area of Science:

Virology
Public Health
Infectious Diseases

Background:

Genital herpes simplex virus type 2 (HSV-2) is a prevalent global cause of genital ulcer disease (GUD).
Undiagnosed cases, atypical presentations, and asymptomatic shedding contribute to ongoing HSV-2 transmission.
Genital ulcer disease significantly enhances HIV transmission and acquisition, particularly in low and middle-income countries.

Purpose of the Study:

To highlight the urgent need for a safe and effective HSV-2 vaccine.
To address the challenges in diagnosing and treating genital herpes in resource-limited settings.
To emphasize the role of HSV-2 in facilitating HIV transmission.

Main Methods:

This study is a review and synthesis of current knowledge on HSV-2 prevalence, transmission, and its impact on public health.
Analysis of the implications of undiagnosed HSV-2 and its role in co-infection with HIV.
Evaluation of current diagnostic and treatment limitations.

Main Results:

HSV-2 prevalence is high globally, contributing significantly to GUD.
Lack of accessible diagnostics and treatments exacerbates the problem in low- and middle-income countries.
Rising HSV-2 prevalence correlates with increased GUD attributed to genital herpes in high HIV settings.

Conclusions:

A safe and effective HSV-2 vaccine is critically needed.
Multifaceted interventions are required to improve genital herpes recognition and prevent spread.
Controlling HSV-2 is essential to reduce HIV transmission and acquisition globally.