What is not true regarding the type 1 hypersensitivity reaction ? A Reaction can be systemic B. Begins in seconds after exposure C. The example is mismatched blood transfusion D. Release of histamine E Stimulates B cells to produce ige 48. Defense mechanisms of the antibodies are: A Agglutination B. Complement fixation C. Neutralization D. A and B are correct E A B and C are correct

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