This included unethical research performed on unsuspecting people, such as covert vaccine and cold war radiation experiments. To better understand the man made AIDS, it is essential to know what some virologists were doing in the 1970s, the decade before the outbreak. This was closely followed by the “gay plague” of AIDS. This vaccine was administered to gay men in preliminary trials shortly before (1976-1977) and during the actual hepatitis B experiment (1978-1980) at the New York Blood Center in Manhattan. So how did AIDS start exclusively in young, healthy, primarily white and well-educated homosexuals in Manhattan? My research suggests HIV entered the gay population via an experimental hepatitis B vaccine contaminated by a chimpanzee virus. In reality, there is little hard evidence to prove that the American epidemic came from Africa, or even from Haiti, as a few molecular biologists have claimed. However, never adequately explained is how a black African heterosexual epidemic could have segued into a mostly white homosexual epidemic in Manhattan, New York City beginning in 1979 -at a time when there was no epidemic in Africa. AIDS is a blood-borne and sexually-transmitted disease (STD) caused by HIV (the human immunodeficiency virus). and that it originated in sub-Saharan Africa among black heterosexuals. AIDS experts and the mainstream media have tried hard to convince us that gay men started the epidemic in the U.S.