ABO blood-type compatibility between organ donors and recipients is crucial for safe transplantations. Across the different ABO blood groups, longer wait-times for a kidney transplant are often experienced by patients who have type B blood because it is a less common ABO blood type, resulting in fewer donors. Type B blood type is more prevalent among Black and Asians individuals. Black African Americans are more likely to require kidney transplants than other groups, making the limited number of type B kidney donors a contributor to health inequities. Read more from News Medical Life Sciences.