HSV-1 and HSV-2 can be found in and released from the sores that the viruses cause, but they also may be released between outbreaks from skin that does not appear to have a sore. Generally, a person can only acquire HSV-2 infection during sexual contact with someone who has a genital HSV-2 infection. Transmission can occur from an infected partner who does not have a visible sore and may not know that he or she is infected. HSV-1 can cause genital<unk> , but it more commonly causes infections of the mouth and lips, so-called fever blisters. HSV-1 infection of the genitals can be caused by oral-genital or genital-genital contact with a person who has HSV-1 infection. Genital HSV-1 outbreaks recur less regularly than genital HSV-2 outbreaks.
The surest way to avoid transmission of genital<unk> , is to abstain from sexual contact, or to be in a long-term mutually monogamous relationship with a partner who has been tested and is known to be uninfected. Genital ulcer diseases can occur in both male and female genital areas that are covered or protected by a latex condom, as well as in areas that are not covered. Correct and consistent use of latex condoms can reduce the risk of genital<unk> . Persons with<unk>  should abstain from sexual activity with uninfected partners when lesions or other symptoms of<unk>  are present. It is important to know that even if a person is asymptomatic, he or she can still infect sex partners. A positive HSV-2 blood test most likely indicates a genital<unk>  infection.
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