“It sounds like you’re saying that AIDS is a gay disease in the U.S. but a heterosexual disease in Africa. Medical science is different on different continents? I doubt that’s the case.”
Medical science isn’t different. The route of transmission of a virus is what is different.
How do you think that infants can be born with HIV if it is a “gay disease?” Gay men don’t produce children.
If you’d like to learn more about HIV-AIDS in Africa:
http://www.bmj.com/cgi/content/full/324/7331/207
“Gay men don’t produce children.”
That is only partially correct. Bi-sexuals, prostitutes and other people who have been infected by needles, blood, etc. produce children.
And you also said: “The route of transmission of a virus is what is different.”
The route of transmission is different because the virus knows it’s in Africa?