Now on the other hand, AIDS is a syndrome of immune supression, not a disease, so there of course could be other things that cause a similar syndrome.

Now that is a familiar mistake - and a negligence that does real damage. I'm more familiar with the mental side of the medical establishment so have seen, for example, ADD symptoms lumped together and medicated presuming there is only one distinct etiology. Looking at a brain scan could tell them the difference easily enough.

(warning: reading his papers may result in general increased skepticism about the medical establishment)

That would be surprising - purely because my existing skepticism is already significant. All the more so after I spent some time involved in medical research myself. Scary stuff. "Hang on, wait. you want me to do what with the data?"