Our blood is categorised into groups based on the presence or absence of specific antigens ... Type AB-positive individuals are universal recipients, as they can receive blood from any group.

If you've ever searched the internet for the rarest blood type, you may have come up with more questions than answers. The short answer: AB ... group systems containing 354 red cell antigens.

Consequently, a single antibody molecule can simultaneously bind two identical epitopes on the same antigen. Diagram of an antibody structure showing ... leukocytes (white blood cells ...

The presence of specific antigens in this blood group could influence how the body responds to infections and autoimmune diseases. People with blood group AB appear to be more predisposed to ...