what is the source of antibidies of blood groups abd how are they already present in blood
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Blood group AB is the least common, and these individuals will have neither anti-A nor anti-B in their serum. ABO antibodies in the serum are formed naturally. Their production is stimulated when the immune system encounters the "missing" ABO blood group antigens in foods or in micro-organisms.
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Blood group AB is the least common, and these individuals will have neither anti-A nor anti-B in their serum. ABO antibodies in the serum are formed naturally. Their production is stimulated when the immune system encounters the "missing" ABO blood group antigens in foods or in micro-organisms.
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