herpes key facts
  • The herpes simplex virus, or herpes, is categorized into 2 types: herpes simplex virus type 1 (HSV-1) and herpes simplex virus type 2 (HSV-2).
  • HSV-1 is mainly transmitted by oral-to-oral contact to cause oral herpes (which can include symptoms known as “cold sores”), but can also cause genital herpes.
  • HSV-2 is a sexually transmitted infection that causes genital herpes.
  • Both HSV-1 and HSV-2 infections are lifelong.
  • An estimated 3.7 billion people under age 50 (67%) have HSV-1 infection globally.
  • An estimated 417 million people aged 15-49 (11%) worldwide have HSV-2 infection.
  • Most oral and genital herpes infections are asymptomatic.
  • Symptoms of herpes include painful blisters or ulcers at the site of infection.
  • Herpes infections are most contagious when symptoms are present but can still be transmitted to others in the absence of symptoms.
  • Infection with HSV-2 increases the risk of acquiring and transmitting HIV infection.





Reference;
WHO – https://www.who.int/