In 2018, the Australian Red Cross Service revealed that 1 in 3,500 donations tested positive for infectious agents. The report further illumined significant weaknesses in donor evaluation, which had deliquesced to the point of compromising the safety of blood supply.
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The blood group of a person is determined by the presence or absence of certain inherited antigenic substances and certain acquired antibodies in blood.
A blood transfusion is a medical procedure in which compatible, cross-matched blood (red blood cells) is transfused into a person through an intravenous line (IV).