[markenqualitaet]

I don't think it works this way with HIV. As you stated having immunity to a specific HIV presentation does not prevent infection. Any vaccine effective would need to make the body see a pattern it cannot find on it's own. Something universal to HIV, which cannot be evolved around.

This is different from other disease where the immune system doesn't have enough time to response before the disease kills/damages the body.

If the vaccine can prevent HIV signature evasion, it may very well help control/treat the disease, I think.