In Africa, AIDS is widespread among heterosexuals. As many women as men have it. While the spread of AIDS among heterosexuals in Europe, the United States, and elsewhere is not yet as rampant as in Africa, it is increasing in that group too. So more and more women and men who are not homosexual or bisexual are getting AIDS and passing it on to others.

In Africa, it is reported that some 10 percent of all men and women who have the AIDS virus received it through infected blood from transfusions or the use of contaminated needles, such as in vaccinations. Since some estimate that there may be some five million AIDS carriers there, this could mean that there are over 500,000 people in Central Africa who got the AIDS virus from contaminated blood.