Medicine:Er blood group collection

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Short description: Human blood group classification

The Er blood group collection is a collection of three human red blood cell surface antigens, Era, Erb, and Er3.[1] The incidences of Era and Er3 are each greater than 99% of the human population, while the incidence of Erb is less than 0.01%.[1][2] Individuals with antibodies against Er3 may develop acute hemolytic transfusion reaction upon transfusion with an incompatible unit, while Era and Erb are unlikely to be clinically significant.[3]

Era was first identified in 1982 and Erb was identified in 1988.[1] The blood group was established by the International Society of Blood Transfusion in 1990.[1]

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