Know Peter Duesberg? He doesn't believe HIV causes AIDS.
"He has instead proposed the hypothesis that the various
American/European AIDS diseases are brought on by the long-term
consumption of recreational drugs and/or AZT itself, which is
prescribed to prevent or treat AIDS. See The AIDS Dilemma: Drug
diseases blamed on a passenger virus."
http://www.duesberg.com/
http://www.duesberg.com/papers/chemical-bases.html

And here's a new bloomberg article about a "New, Virulent HIV Strain".
Guess what - The guy is a heavy crystal meth user - and was treated
with several anti retrovirus drugs. Suddenly he's sick! Can't imagine
why. And they label it AIDS. Another highlight from the article -
'"the patient's use of crystal methamphetamine shows that the drug
continues to play a significant role in facilitating the transmission
of HIV.'' The drug reduces peoples' inhibitions and their likelihood of
using condoms or other forms of safe sex, he said.'
Right. So they admit the corrolation between meth and AIDS. But it's
only because a person is less likely to use a condom, get HIV, then
AIDS. hmmmm. Fishy. What do you think?
http://www.bloomberg.com/apps/news?pid=10000103&sid=azBO_AumTJhs

The article ends with information about drug companies' stock. Yep, I
agree. HIV/AIDS is about money, not truth or health.