Canadian researchers say they've found a way to convert any blood to universal type O

TORONTO — Canadian researchers believe they have found the means to convert any type of blood into universally usable group O with enzymes found in the human gut — a finding that could expand the pool of potential blood donors and make blood-matching easier and safer. For transfusions to be safe, blood from a donor — for instance, A, B or AB types — must match that of a patient. O-type blood can be transfused into anyone and is always in high demand.-- More...