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probability that I gave him HSV2 from one encounter?

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I am an HSV 2 positive female who does not experience more than one outbreak per year. Diagnosis was in October of 2006. I had a one night stand a year ago with a male. We used a condom for the majority of intercourse. We never spoke again. I just found out that his wife is 6 months pregnant, and I called him to ask him if he has ever been tested for HSV 2, he said no and that he will not because he has no symptoms. I tried explaining that he should b/c neonatal herpes can be devastating for an infant. He mentioned that his wife tested negative for STD screens at her OB, however not all OB's screen for HSV2. What is the probability that I gave him HSV2 from one encounter?

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replied June 26th, 2015
Sexually Transmitted Diseases Answer A52731
Welcome to e health forum.

HSV-2 infection is more common in women (approximately one out of four women) than in men (almost one out of five). This may be because male to female transmission is more efficient than female to male transmission.

Transmission of HSV-2 to an uninfected partner depends on many different factors, and it is difficult to give precise figures. The risk of transmission of HSV-2 from female to male - is about 4 %. But Transmission from a male to female is 10%.

So based on these figures, it is possible that though you had the infection, your ex-partner did not get infected, possibly due to the use of condoms.

I hope this answers your question.

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