It's important to note that they didn't release HIV into the patient in vivo. They infected T-Cells in vitro that then multiplied in the patient's body. By doin

It's important to note that they didn't release HIV into the patient in vivo. They infected T-Cells in vitro that then multiplied in the patient's body. By doing it in a test tube they can also throw out the bad results. Gene therapy isn't going to work quite yet inside of a body, but if you can grow replacement organs from scratch, you can definitely get somewhere.