Micro & Immunology · single question

Systemic lupus erythematosus is classified as which hypersensitivity type?

  1. Type I
  2. Type II
  3. Type III
  4. Type IV
Show answer and explanation

Correct answer: C. Type III

  • A. Type I is IgE-mediated immediate allergy.
  • B. Type II is antibody-mediated cytotoxicity.
  • C. Correct. SLE is a Type III immune-complex disease (antigen-antibody complexes deposit and activate complement).
  • D. Type IV is T-cell-mediated delayed hypersensitivity.

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