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[Alpha-herpes virus infections--male genital herpes]
1Department of Urology, Hokkaido Central Hospital for Social Health Insurance.
Abstract:
In Japan, male genital herpes is the third popular male STD, the most popular one being gonococcal infection and the second chlamydial infection. As specific clinical findings, superficial ulcer lesions with pain are formed in the genital area, especially in the prepuce. After HSV infection in genital mucocutaneous sites, viral particles are transported to the neurons. The state of subsequent HSV infection from external genitalia to the neurons is known as latent infection. 76% of our cases of the first episode of genital herpes infection were caused by HSV-2, and most of the recurrent episodes was caused by HSV-2. Oral acyclovir administration for five to ten days has shortened the treatment period, although about 20 days were required without any treatment. The remaining problems are, asymptomatic HSV shedding, severe infections in immunocompromised patients, transmission of HSV to sex partners and vertical infection to neonates.
Insights
Male genital herpes, often caused by herpes simplex virus type 2 (HSV-2), is a common STD in Japan. Treatment with oral acyclovir shortens recovery, but challenges like asymptomatic shedding and transmission persist.
Area of Science:
- Infectious Diseases
- Virology
- Dermatology
Context:
- Male genital herpes is the third most common sexually transmitted disease (STD) in Japan.
- Specific clinical findings include painful superficial ulcerations, particularly on the prepuce.
- Herpes simplex virus (HSV) establishes latent infections in neurons after initial mucocutaneous exposure.
Purpose:
- To describe the epidemiology and clinical characteristics of male genital herpes in Japan.
- To evaluate the efficacy of oral acyclovir in treating genital herpes.
- To identify persistent challenges in managing HSV infections.
Summary:
- Herpes simplex virus type 2 (HSV-2) caused 76% of first-episode genital herpes infections and most recurrent cases.
- Oral acyclovir treatment shortened the duration of infection from approximately 20 days to 5-10 days.
- Key challenges include asymptomatic viral shedding, severe infections in immunocompromised individuals, sexual transmission, and vertical transmission to neonates.
Impact:
- Highlights the significant prevalence of genital herpes in Japanese males.
- Demonstrates the therapeutic benefit of acyclovir in reducing genital herpes duration.
- Underscores the ongoing public health concerns associated with HSV, including transmission and management in vulnerable populations.
Related Concept Videos
Sexually Transmitted Infections
Herpes
Chickenpox
Genital Herpes
Amebiasis
Trichomoniasis

