What Is Herpes?
Herpes is a viral infection caused by herpes simplex virus type 1 (HSV-1) or type 2 (HSV-2). It is characterized by recurrent episodes of painful sores or blisters on the skin or mucous membranes. HSV-1 commonly results in oral herpes, presenting as cold sores around the mouth, while HSV-2 primarily causes genital herpes, affecting the genital and anal areas. The virus remains in the body in a dormant state and can reactivate, causing recurrent symptoms.
Types of Herpes Simplex Virus
- HSV-1: Primarily causes oral herpes, but can also cause genital herpes.
- HSV-2: Primarily causes genital herpes, but can also cause oral herpes.
Transmission
Herpes can spread through direct contact with infected bodily fluids or lesions. Oral herpes is commonly spread through kissing or sharing personal items, while genital herpes is typically transmitted through sexual contact.
Symptoms
Primary Infection
An initial infection can be severe, with multiple painful blisters, fever, and swollen lymph nodes.
Recurrent Episodes
Recurrent episodes are often less severe, with fewer sores. Triggers for recurrence can include stress, illness, and sun exposure.
Diagnosis
- Clinical examination of sores.
- Laboratory tests, including PCR (polymerase chain reaction), viral culture, and blood tests for HSV antibodies.
Treatment
There is no cure for herpes, but antiviral medications, such as acyclovir and valacyclovir, can manage symptoms and reduce the frequency of outbreaks.
Possible Complications
- Increased risk of HIV transmission.
- Severe infections in immunocompromised individuals.
- Neonatal herpes, a serious condition that can occur if a newborn is exposed to HSV during birth.
Online References
- Centers for Disease Control and Prevention: Genital Herpes
- Mayo Clinic: Genital herpes
- World Health Organization: Herpes simplex virus