These results are surprising because they appear to contradict what we know about human sexual behavior. Cross-culturally, men are more promiscuous than women. They have more sexual partners before marriage and higher rates of marital infidelity. Moreover, some of their numbers patronize prostitutes, who are a prime vector for AIDS transmission. These are all behaviors which expose men to a greater risk of sexually contracting HIV/AIDS.Actually, from what I can see, these results are supported by what we know about human sexual behavior, and about AIDS. If an HIV-infected man are able to impose themselves on multiple women, and if (as is known), male to female transmissions of HIV is much more efficient than female to male transmission of HIV, then you'd expect to see many more women than men have HIV infection in such a population. And that's what we see.
While non-sexual transmission of AIDS in Africa is very likely a serious problem, blaming it, and blaming the specific procedures of contraception as spreading them, is conjecture at best.
I was going to say what you did. Thanks for saving me the trouble. ;-)
Absolutely, and most of the measures cited do not involve needles or invasive procedures, such as the Pill, condoms, Norplant.
There is a correlation between vaccinations and other injections and HIV/AIDS transmission because of unsterilized needles used.