There has been a lot of discussion lately on the Coronavirus Megathread about HIV and AIDS. The topics are of course related but perhaps discussion of HIV and AIDS should have its own place which is the purpose of this thread. Some key points for discussion are:
Whether the HIV virus has been isolated and shown to exist. What is HIV?
Whether, if there is an HIV virus, this causes the disease of AIDS.
If AIDS is rather a collection of symptoms caused by o