@William,
William;67363 wrote:Please bring that biological and scientific evidence forward as to it's 100% authenticity that will prove me wrong.
HIV-1 came from chimpanzees in central Africa. HIV-2 came from either sooty mangabees or green monkeys in west Africa. There was probably occasional transmission to humans via hunting / eating chimps and monkeys. The transmission of HIV in Africa dates back at least 50-100 years, long before case reports began to surface in the United States and Europe, and HIV transmission in Africa has always been predominantly heterosexual and vertical (mother to child). Even in the United States the first
probable cases of HIV were in IV drug users (there are some journal articles from the 1970s reporting unusual infections in IV drug users, and speculating that there was something immunosuppressive about heroin).
Within the USA and Europe, the epidemic indeed took hold in the gay male community and among IV drug users, but that's only because they were the highest risk groups at the time HIV arrived here. Again the epidemic began decades earlier as a zoonosis in Africa and was propagated by heterosexual transmission there (as continues to happen).
Would you like some references? This will keep you busy for a while. Some of these are primary scientific articles; the others, which are review articles, are all comprehensively referenced with primary scientific studies.
Gao F, Bailes E, Robertson DL, Chen Y, Rodenburg CM, Michael SF, Cummins LB, Arthur LO, Peeters M, Shaw GM, Sharp PM, Hahn BH
Origin of HIV-1 in the chimpanzee Pan troglodytes troglodytes Nature. 1999 Feb 4;397(6718):436-41
Keele BF, Van Heuverswyn F, Li Y, Bailes E, Takehisa J, Santiago ML, Bibollet-Ruche F, Chen Y, Wain LV, Liegeois F, Loul S, Ngole EM, Bienvenue Y, Delaporte E, Brookfield JF, Sharp PM, Shaw GM, Peeters M, Hahn BH.
Chimpanzee reservoirs of pandemic and nonpandemic HIV-1 Science. 2006 Jul 28;313(5786):523-6. Epub 2006 May 25.
Switzer WM, Parekh B, Shanmugam V, Bhullar V, Phillips S, Ely JJ, Heneine W.
The epidemiology of simian immunodeficiency virus infection in a large number of wild- and captive-born chimpanzees: evidence for a recent introduction following chimpanzee divergence AIDS Res Hum Retroviruses. 2005 May;21(5):335-42.
Van Heuverswyn F, Peeters M.
The Origins of HIV and Implications for the Global Epidemic Curr Infect Dis Rep 2007 Jul;9(4):338-346.
Karpas A.
Human retroviruses in leukaemia and AIDS: reflections on their discovery, biology and epidemiology Biol Rev Camb Philos Soc. 2004 Nov;79(4):911-33.
Holmes EC.
On the origin and evolution of the human immunodeficiency virus (HIV) Biol Rev Camb Philos Soc. 2001 May;76(2):239-54.