Hi Doc
If HIV transmission probability is 0.07% per act male to female, 0.04% female to male.
Why is it so prevalent is South Africa with 13% of population infected?
so that is 7 or 4 cases per 10 000 sexual acts, majority of population should be heterosexual
That is if you have sex everyday for 27 years ( 10000/365 =27), you have 7 confirmed chances of getting HIV
So why is it so prevalent? Doesn't make sense.
Are we undercounting the transmission risk?
Thanks in advance
Kind regards
The transmission rates you state are roughly accurate for unprotected intercourse, but having regular unprotected intercourse with people who are HIV+ is likely to lead to eventual infection.