By Tanner Garrity If your blood type is O negative, you’re used to being the popular kid at the school dance. “Universal donors” are hounded by blood banks throughout the year for their precious supply, which lacks A, B and RhD antigens on the surface of red blood cells. Normally, these antigens are treated as “foreign” during an attempted transfusion (assuming the receiving party doesn’t have them). The immune system prepares to throw fisticuffs, determined to destroy invaders, even though its host desperately needs the blood. O negative blood is an elegant workaround to this issue. It’s in h…

Read More