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There are two types of Herpes simplex virus-type 1 and type 2.  Herpes can affect the mouth and face area and causes cold sores. This is known as oral herpes or HSV-1. Herpes can also affect the genitals and this is known as genital herpes or HSV-2. Sometimes, the herpes virus can affect the eyes. Sometimes the HSV-1 can cause genital herpes.  The virus presents as blisters and these contain infectious virus particles. This can take between 2 and 21 days, in the active state. This is followed by a remission period. It is never cured. The virus is transported via sensory nerves to the nerve cell bodies where it will remain latently. It can be triggered at various times in a person's life by stress, illness, fatigue, immunosuppression, trauma  and then the latent virus multiplies and travels to the nerve terminals in the skin whereby it is released, causing a new active period. Transmission occurs with direct contact with a sore or lesion, or body fluid of an infected person. However, sometimes, when a person appears asymptomatic, they can be shedding viruses and are contagious at that time. It seems that over time, outbreaks become less severe and infrequent, but, these people may still be able to spread the virus to others.

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