The testing has been done, and it has been proven. I mentioned the study already done at the SF Veteran's Hospital that was done a while back. There was a 100% remission of symptoms in all cases. When they tried to do a larger study here in the US the FDA stopped it before it even got started.
Germany has done a lot more with ozone for AIDS, cancer, and numerous other conditions. I think it was Dr. Preuss that claims to have cured over 600AIDS patients using hyperbaric ozone therapy.