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how can a woman infect a man

Apr 18, 2008

I know that it's a low risk for an HIV+ woman to pass the virus to an HIV- heterosexual man. My question is: What exactly needs to happen for a woman to pass the virus to a man during vaginal or/and oral sex?

Response from Dr. Frascino


I wouldn't characterize female-to-male HIV transmission as low risk! Certainly it's lower (less efficient) than male-to-female transmission, but it's far from low risk! In fact the vast majority of men with HIV worldwide contracted it from HIV-infected women!

What exactly needs to happen? Infected cervical/vaginal secretions need to come into contact with the mucous membrane lining the urethra (pee hole). Not every exposure leads to viral transmission, but in some cases it only takes a single exposure (unprotected vaginal sex) for HIV-infected cervical/vaginal secretions to come into contact with the urethra's mucous membrane and viral transmission to occur. You can read much more about this in the archives.

Dr. Bob

generalized palpable lymph nodes

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