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HIV/AIDS

19 July 2010

False-positives in Aids trials

Almost half of HIV-negative people who participate in clinical trials for HIV vaccines end up testing positive on routine HIV tests - even though they're not actually infected, a new study shows.

Almost half of HIV-negative people who participate in clinical trials for HIV vaccines end up testing positive on routine HIV tests -- even though they're not actually infected, a new study shows.

"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," said Dr. Michael Horberg, director of HIV/AIDS at Kaiser Permanente in Santa Clara, Calif. "If it is a false positive but they do not have HIV infection, that would be very important for them to know, especially if they do repeat testing as part of good preventive health."

 

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