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[VOA标准] VOA标准精精听2019-03-21

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You wait 16 months before stopping in the post-transplant period just to make sure that the cancer was in remission. The patient was well. And the measures we had of the HIV reservoir in the body showed that there was very very little virus there, if any at all. Gupta hesitates to call it cure, but he says it's significant. This is the second patient to show no sign of the HIV virus after a similar stem-cell transplant. The first was an American man, treated in Berlin 12 years ago. If you transplanted those cells into somebody who already has HIV, you may protect those new cells from infection. But stem-cell treatment is not a practical cure for the 37 million people across the globe who have HIV. It's expensive and finding a match with that genetic mutation is difficult. The procedure itself is painful and risky.
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