Flutterby™! : The Man Who Had HIV and Now Does Not

Interesting: New York Magazine: The Man Who Had HIV and Now Does Not. Basically, guy on AIDS drug cocktail for long-term maintenance came down with leukemia, managed to arrange bone marrow transplant from donor with mutation delta 32, disables CCR₅, an immune system cell receptor which is a pathway for AIDS infection, now has no detectable HIV in his system.

The process is too expensive for AIDS patients generally, but this has re-invigorated AIDS and HIV research.