It's not just one thing, I recommend the Kary Mullis interview if you are interested, though both videos are related. He even discusses Fauci, and this was in the 90s.

The symptoms are different for different demographics: in Africa it resembles mostly the effects of malnourishment, in the western gay community in the eighties it mostly resembled the effects of a specific party drug use, etc. And, again, the relation between HIV and AIDS, is one required by defini...

None, the link is well studied and well established.