[1000units]

Please elaborate if you have the opportunity.

How many strictly heterosexual couples have been infected with HIV in the history of mankind? I'm aware there must be some due to IV drug abuse.

[coldtea]

>How many strictly heterosexual couples have been infected with HIV in the history of mankind?

Several tens of millions (most of them in Africa), why?

[1000units]

Do you have any statistics on this you can refer me to? The CDC estimates the transmission risk for receptive PIV intercourse to be about 8 in 10,000 exposures (0.08%). It's half that for the insertive partner.