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Breakthrough brings universal blood a step closer to reality

What is this research about?

Chances are if you’ve ever given blood then you know your blood type. But why is blood typed and matched before transfusion? What exactly makes blood types different and why is it important? Blood type is based on antigens. Antigens can be proteins, sugars or lipids present on the surface of red blood cells. The body can use antigens as signals to distinguish "self" from "foreign". If incompatible blood is used, that mismatch can sometimes cause an immune response against the transfused red blood cells, destroying them and making the recipient ill. Of more than 30 red blood cell antigen groups, ABO and Rh are the most clinically significant

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