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Information on Herpes Simplex 1 & 2

Herpes simplex virus (HSV) usually infects skin and mucous membranes although it can also infect other parts of the body. Herpes simplex virus 1 and 2 are genetically distinct and affect different areas.

  1. Differences

    • Herpes simplex virus 1 (HSV-1) most often infects the mouth and causes cold sores and fever blisters. HSV-2 is the primary cause of genital herpes.

    Transmission

    • Herpes is most often transmitted by physical contact. This typically occurs as a result of unsanitary conditions in the case of HSV-1 and sexual intercourse in the case of HSV-2.

    Prevention/Solution

    • HSV-1 transmission rates may be reduced by improving general sanitation. The most effective way to prevent infections of HSV-2 is engaging in safer sex practices,such as condoms and limiting the number of sexual partners.

    Symptoms

    • Both types of HSV produce a characteristic lesion consisting of a blister with a thin walled blister on top of a base of inflamed skin.

    Diagnosis

    • HSV may be definitively diagnosed with sererologic (blood) testing, although most cases are diagnosed from the symptoms alone.

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