The fourth Cell-mediated reaction is a delayed reaction. Anaphylactic Reaction results from IgE antibodies are produced in response to certain antigens. Many IgE Fc antibodies attachh to a mast cell or a basophil. Antigens for the IgE can bridge two of the antibody and then the mast cell ruptures, spilling its histamines, prostaglandins, and leukotrienes. Many times fatal due to shock and breathing difficulty.
Examples are IVP dye and penicillin.
They are eggs, peanuts, tree-grown nuts, milk, soy, fish, wheat, and peas. Cytotoxic Reaction s result from activation of complement when and antigen-antibody complex is formed. IgG or IgM may be involved. Complement lyses the host's cell which then releases it's contents. The best known example of this type of reaction is a transfusion reaction.