Prevalence of ABO and Rh Blood Group Among Volunteer Blood Donors at the Blood and Tissue Bank Service in Addis Ababa, Ethiopia.

Background: The discovery of the ABO blood group system and testing of blood donors highly reduced the fatalities associated with blood transfusion reactions and improved the safety of blood transfusion. Blood group antigens are found on the surface of red blood cells that are inherited biological characteristics that do not change throughout life in healthy individuals.

Objective: To determine the prevalence ABO and Rh blood groups Among Volunteer Blood Donors at Ethiopian blood and tissue bank service (EBTBS), Addis Ababa.