I do not agree as with many top microbiologists that HIV exists at all. HIV certainly doesn't cause AIDS and if you study harder on this subject via a site called Virusmyth you will understand more. Go a little through this forum and you'll see an article posted by me on the real causes of AIDS. Also I suggest you read what Dr F.Batmanghelidj has to say on this subject, this should be on my site shortly.