"The arguments, denials and protestations will continue for some time, but I believe that over the next few years it will gradually come to be realised that the Aids pandemic was sparked by large-scale field trials of an experimental polio vaccine – trials that employed African ‘volunteers’ as guinea pigs."

"But the OPV theory relates to a different polio vaccine. It proposes that an experimental polio vaccine called CHAT, developed at the Wistar Institute in Philadelphia, initiated the Aids pandemic by introducing simian immunodeficiency virus (SIV) from the common chimpanzee into some of the million Africans who were given the vaccine between 1957 and 1960. Chimpanzee SIV is now widely recognised as the direct ancestor of the strain of HIV (HIV-1 Group M) that has caused approximately 99 per cent of infections to date. In Africa, CHAT vaccine was administered only in Belgian-ruled territories: the Belgian Congo (now the Democratic Republic of Congo) and the former UN trusteeship of Ruanda-Urundi (now Rwanda and Burundi). These are also the countries that represent the epicentre of Group M-related Aids. The Laboratoire Médical de Stanleyville (LMS), which tested CHAT vaccine for safety and co-ordinated the early African vaccinations, was situated just a few miles from a chimpanzee colony, Lindi camp, which operated between 1956 and 1960. During those years, more than five hundred chimps and pygmy chimps (bonobos) were sacrificed there, mostly in the course of the polio research."

London Review of Books
Aids and the Polio Vaccine
Edward Hooper finds new evidence
https://www.lrb.co.uk/v25/n07/edward-hooper/aids-and-the-polio-vaccine