Scientists have discovered two enzymes produced by gut bacteria that can convert type A into type O blood (which can be given to persons of all blood types). This finding could revolutionize blood ...

Every two seconds, an American needs a blood transfusion. But blood transfusions aren’t as simple as taking one person’s blood and giving it to another. There are four different types, but type O ...

In a step toward increasing access to donor organs, scientists have converted a blood-type-A kidney to blood type O and then transplanted it into a brain-dead person. The kidney, which had essentially ...

A pair of enzymes from the human gut microbiome can convert type A red blood cells to type O red blood cells. These enzymes might, with further development, help make universal blood that could be ...

For kidney failure patients, transplants offer hope. Type O recipients wait years longer, as they can donate to anyone but ...

Blood group systems are important for blood transfusion. In clinical transfusion, the ABO and Rh D blood group systems are the most critical among 33 human blood ...

Bacterial enzymes may help increase the supply of universal blood. There is an outsize demand for type O blood, specifically because it includes red blood cells that can be transfused into anyone ...

In a new study, researchers report that they used newly discovered gut bacteria enzymes to convert type A blood to type O at a rate faster than ever before. Omnipresent blood shortages could soon be ...