The class of antibodies that plays an important role in type I hypersensitivity reactions is _____.
Correct Answer: IgE
Description: Although IgE is the least prevalent immunoglobulin in the body, it is the major antibody mediator of type I hypersensitivity reactions. These reactions are caused primarily by prior sensitization and the accumulation of IgE to a specific allergen.
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Pathology
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