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I'm Confused About How HSV1 Is Spread Between Oral and Kissing

Ok, I've read a few posts on this forum about how some people got genital HSV1 from a longterm partner who didn't cheat. My question is, how did the contract it geniatally if they kissed first??? Wouldn't the fact that they had been kissing their partner the whole time make it impossible to get it on the genital area?
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Avatar universal
That does seem to be the case. There is also a theory that maybe as people are exposed to bacteria and viruses on their lips, including HSV1, that defenses are developed more strongly in that area.
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Avatar universal
I looked around on the Expert forums, and apparently it's pretty much impossible to catch HSV1 on the genital area if you've had it on your mouth already...and the longterm partners who eventually caught it, were never infected with HSV1 in the mouth their entire relationship so they were susceptible to catching it on the genitals.
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Avatar universal
Thank you for explaining it so well. Do you think it would still be possible to catch genital HSV1, if the partner was already infected orally with HSV1 from a different partner beforehand?
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Avatar universal
This is hard to comprehend sometimes, but does illustrate that the virus has to be present, which it is only at certain times, and must be rubbed in and reach a nerve. Hence although the same episode resulting in a genital infection may also involve kissing, each site was exposed to a chance of infection only.
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