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More Woes for Struggling HIV Vaccine Field

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Science  10 May 2013:
Vol. 340, Issue 6133, pp. 667
DOI: 10.1126/science.340.6133.667

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Devastating results from two trials have sent researchers scrambling—again—to reassess HIV vaccine strategies, and they have raised concerns about a vector that is widely used in vaccine and gene therapy studies. The double whammy suggests that a successful vaccine, the most effective way to slow if not end the epidemic, lies far in the future.