Result: Of the 654 subjects tested, 368 (56.2%) were of blood group O, 139 (21.3%) were blood group B, while 116 (17.7%) and 31 (4.7%) were group A and AB respectively. 577 (88.32%) were Rhesus D positive while 77 (11.79%) were Rhesus D negative. When comparing ABO blood group distribution among tribes, O blood group was higher among the Kilba tribe (4.74%) at P<0.05 compare to other tribes. Bu...