Interchangeable Blood
I've often wondered when this would become a possibility:
Blood groups 'can be converted'
The technique potentially enables blood from groups A, B and AB to be converted into group O negative, which can be safely transplanted into any patient.
The method, which makes use of newly discovered enzymes, may help relieve shortages of blood for transfusions.
Of course, this is just a step along the way to fully synthetic blood, which will not only be interchangeable between all the different blood types, but will also provide other benefits as well
Via GeekPress.