Herpes type 1 (HSV-1)

Herpes type 1 is a variant of the herpes virus also known as Herpes Simplex Virus (HSV). There are two main types of herpes, type 1 and type 2. Herpes type 1 is also known as HSV-1 and is the most common type of herpes.

Infection and symptoms
HSV-1 is a viral infection which is transmitted through body fluids and mucous membranes, most commonly through saliva. In the initial stages, infected persons may experience symptoms during the so called primary infection. Common symptoms include cold sores or fluid-filled blisters in the mouth and on and around the lips. Herpes type 1 typically affects the mouth but the virus may in rare cases also attack other parts of the body.

HSV 1 labiale

Herpes varicella zoster

After exposure to the virus, the virus remains in the body even after symptoms have cleared up, and may be reactivated. The infection cannot be cured but it is possible to prevent outbreaks.

Very common
Herpes type 1 is a widely disseminated infection. According to estimations about 80% of the UK population carry the virus. However, not everyone experience any symptoms, and in fact most carriers of the virus never experience any sores or other symptoms. An infected person may still transmit the disease to other people even if he or she does not have any symptoms.