New tack to block HIV raises prospect of vaccine for AIDS

February 19, 2015 1:45 AM

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New tack to block HIV raises prospect of vaccine for AIDS

NEW YORK — A new compound has blocked HIV infection so well in monkeys that it may be able to function as a vaccine against AIDS, scientists reported Wednesday.

HIV has defied more than 30 years of conventional efforts to fashion a vaccine. The new method stimulates muscle cells to produce proteins that somewhat resemble normal antibodies, which have Y-shaped heads. These proteins have a head and a tail, and they use them to simultaneously block two sites o...

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