Genital Herpes (cont.)
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Genital Herpes Causes
Genital herpes is caused by the herpes simplex virus (HSV). There are two types: HSV-1 and HSV-2. Most genital herpes infections are caused by HSV-2. HSV-1 is the usual cause of what most people call "fever blisters" in and around the mouth and can be transmitted from person to person through kissing. Less often, HSV-1 can cause genital herpes infections through oral sexual contact. The genital sores caused by either virus look the same.
Note: People with herpes may spread the disease even if they do not realize they have an infection. Furthermore, there is strong evidence that people with herpes can transmit infection even while their disease appears to be inactive and no sores can be visibly seen.
Medically Reviewed by a Doctor on 11/4/2014
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