Which of the items below accurately describe characteristics of Type 4 hypersensitivity reactions.Check all that apply.
A)Reactions occur within minutes of antigen exposure (provocative dose).
B)Reactions are generated by components of the cell-mediated immune response.
C)IgE, basophils, and mast cells are typically involved.
D)Histamine is a major mediator of symptoms.
E)Reactions are delayed for 24- 48 hours after provocative antigen exposure.
F)The tuberculin skin test and the rash caused by poison ivy and poison oak are examples.

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The Answer of Which of the items below accurately describe characteristics of Type 4 hypersensitivity reactions.Check all that apply.
A)Reactions occur within minutes of antigen exposure (provocative dose).
B)Reactions are generated by components of the cell-mediated immune response.
C)IgE, basophils, and mast cells are typically involved.
D)Histamine is a major mediator of symptoms.
E)Reactions are delayed for 24- 48 hours after provocative antigen exposure.
F)The tuberculin skin test and the rash caused by poison ivy and poison oak are examples.

Which of the Items Below Accurately Describe Characteristics of Type