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I have seen no evidence that women give HIV to men. The men who were willing to get circumsized probably had very different behavior than the men who didn't. Men give HIV to other men and to women. Women are always on the receiving end. If we could prevent buggery, of both men and women, we would essentially eliminate HIV. Anal sex with women is not heterosexual. The governments and citizens of African nations are always in denial, and they are quite capable of cooking up whatever research results they want. Homosexuality (and "bisexuality") is rampant in the African nations, but denial is the order of the day. "On the down low" in the US is providing the same transmission vectors as in Africa. Lots of denial here, too.