Study: 50% of those in HIV vaccine trials have false-positive results

07/20/2010 | Yahoo!

A study has found that nearly 50% of HIV-negative people who join clinical trials for HIV vaccines end up with false-positive results on HIV tests because they undergo vaccine-induced seropositivity/reactivity that allows them to have the antibodies to the virus. "You need to make sure to use other forms of testing for HIV, for example, viral load or p24 antigen, not just HIV antibodies. And people who've been in trials need to know their antibody status by the end of the trial," an HIV/AIDS expert said.

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