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

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.

http://www.reuters.com/article/2013/04/25/us-usa-hiv-vaccine-idUSBRE93O0ZE20130425?feedType=RSS&feedName=healthNews