Micro & Immunology · single question
Which immunoglobulin mediates type I (immediate) hypersensitivity such as anaphylaxis?
Show answer and explanation
Correct answer: C. IgE
- A. IgG mediates type II/III reactions, not classic immediate hypersensitivity.
- B. IgM is the first antibody in a primary response.
- C. Correct. IgE binds mast cells/basophils and triggers type I hypersensitivity.
- D. IgA is the secretory/mucosal antibody.
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