This article, talks about how an attempt to replicate a development of a functional cure using bone marrow has failed. In 2007, a man was functionally cured after receiving a bone marrow transplant containing a HIV resistant gene. His viral levels have been undetectable ever since.
Researchers attempted to repeat this phenomenon.. They gave bone marrow transplants, minus the HIV resistant gene. It seemed to be a "cure". However, the effects didn't last & the virus reemerged. The patients are now back on medical regimens.
This may not have been successful, but the data gathered during the time could further research into the matter. Luckily, it doesn't seem if the subjects are any worse off than they were before other than the let down.
Cya...
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