Question

Ab blood group produces no anti bodies so whenever they get a blood transmission done they r in high risk as the have no antibodies for any antigen they would get the infection that the Atherton person had instead of this why was it not like everyone's whit the same blood and antigen /how does the presence of anti gen really help an individual

Answer 1

Blood group antibodies are only for attcaking blood group antigens A and B. General infections in the body are attacked by antibodies produced by B-lymphocytes ( a type of WBCs).When a person has blood transfusion,he will have WBCs also in his blood and also in the transfused blood.They will take care of any infection.
Blood group antigens are present in the blood which will recognise different types of blood.The blood group antigens help to know if others blood is mixed with the individual.