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Chance of men contracting HIV from women
What are odds of a man contracting HIV from a women?
The most quoted figure is from CDC, which published a paper that estimated that if a woman has HIV, the transmission risk to a male partner by vaginal intercourse averages once for every 2,000 exposures. Equally important, HIV remains more rare in women (in the US and western Europe) than many people assume. Even among the most risky women, such as brothel workers, the vast majority to not have HIV. If you combine the low chance any particular partner has HIV, plus the low transmission risk if she does, a typical unprotected encounter with a new female partner probably is in the ball park of 1 chance in a million. And still lower, of course, if a condom is used, which of course it should be routinely.
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