It turns out that blood is divided into six groups, and not four, as previously thought.

This conclusion was made by researchers from the University of Vermont. New species were identified thanks to another discovery - two proteins ABCB6 and ABCG2, located on the surface of red blood cells. Junior and Langereis - this is the name given to new blood types. It turned out that these groups are quite rare and are found in some Americans, in a fairly large number of Japanese and, also, in European gypsies.