Sep 20, Kathmandu - Scientists from the United Kingdom and Israel have discovered a new blood group system in humans, which has been officially recognized as the 49th blood group system named "Jama" by the International Society of Blood Transfusion.

The discovery was made during the study of a rare antibody found in the blood of an Israeli woman and her brother. Researchers identified genetic variations related to the F11R gene and the JAM-A protein, which are associated with this new blood group.

The Jama blood group system is characterized by the absence of a specific antigen commonly found in humans. Individuals with this rare blood type may produce antibodies that attack transfused red blood cells expressing the antigen, potentially leading to severe transfusion reactions.

According to scientists, this breakthrough will aid in identifying rare patients and compatible blood donors. With DNA testing, it will become easier to match patients and donors accurately, making future blood transfusions safer and improving the management of rare antibodies.