Blood Transfusions May Carry Alzheimer's-Linked Protein, Review Warns

A Lancet review suggests that amyloid-beta proteins associated with Alzheimer's disease could potentially be transmitted through blood transfusions, though the risk remains undefined. The authors call for urgent research and accurate screening assays to inform public health decisions. The review follows a large Scandinavian study hinting at a transfusion-transmissible agent linked to intracerebral hemorrhage.