A new blood type discovered in France: "Gwada negative", a global exception Researchers at the French Blood Establishment have just discovered a previously unknown blood type. Dubbed "Gwada negative," this extremely rare blood type has so far affected only one patient of Guadeloupean origin. This is the 48th blood type officially identified worldwide. A unique but hopeful discovery This new group, detected thanks to recent advances in DNA sequencing, opens a new chapter in the understanding of b...