The study began in two thousand five. It was supposed to last until twenty-fifteen. But researchers stopped it early because the results were so clear. Only one case of infection was reported in couples where the infected partner began immediate treatment.Dr. Fauci says earlier treatment led to a ninety-six percent reduction in the spread of HIV to uninfected partners. He says: "This is a powerful bit of evidence that will go into the thinking and formulation of guidelines ... by the international organizations that help to provide drugs in the developing world.
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