My claim is that HIV does not cause AIDS. However, in 100% of AIDS cases HIV is found in the affected individuals, because for it to be called AIDS HIV has to be detected, by definition. All different...
The term "AIDS" is a bit out of fashion, it dates back to before HIV was discovered. Mostly people talk about advanced HIV, where there is a high viral load and low T-cell count. Treating the HIV restores the T-cell count. The link between HIV and failure of the immune system (i.e. AIDS) is indisputable.
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