I want to LEARN why homosexuals are 50 times more likely to get Aids than heterosexuals.

This is obviously not the case everywhere, in Ireland for example the fastest growing group of HIV infected are heterosexual, especially women. Intravenous drug user are strong risers too in the newly infected statistics while new infections among the homosexual community have remained stable.

In most of the Western countries the homosexual population was the first into which the virus was introduced. Hence the high infection rate. In Africa the infection started in the hetero sexual part of the population, and there it is still most prominent. Fairly basic stuff really, if you think about it.