U.S.-backed HIV vaccine fails; study halted

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U.S.-backed HIV vaccine fails; study halted

By Julie Steenhuysen CHICAGO (Reuters) - The National Institutes of Health on Thursday halted a study testing an experimental HIV vaccine after an independent review board found the vaccine did not prevent HIV infection and did not reduce the amount of HIV in the blood. The trial, started in 2009, is the latest in a series of failed HIV vaccine trials. The study, called HVTN 505, had enrolled 2,504 volunteers in 19 U.S. cities, and was looking at men who have sex with men and transgender people who have sex with men. ...

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