The federal Centers for Disease Control and Prevention today reported a case that's likely to raise new questions about the safety of the nation's blood supply. A Utah man repeatedly tested negative for HIV when he donated plasma even though he was apparently infected with the AIDS virus, according to the CDC. Officials say the case is extremely unusual and the blood supply remains very safe. But NPR's Joe Neel reports that the Food and Drug Administration wants blood banks to start using a new, more accurate test to reduce even further the chances of becoming infected with HIV through a blood transfusion from such donors.
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