Type III hypersensitivity is mainly caused by the deposition of:
Correct answer: A. Antigen-antibody immune complexes
- A. Antigen-antibody immune complexes
- B. IgE-coated mast cells
- C. Sensitized T lymphocytes
- D. Cytotoxic natural killer cells
Explanation
Type III hypersensitivity results from circulating antigen-antibody complexes depositing in tissues and activating inflammation. IgE and mast cells are associated with type I hypersensitivity, while sensitized T cells are central to type IV reactions.
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About Veterinary Microbiology and Immunology
Covers the structure, classification, growth and transmission of bacteria, viruses, fungi and other disease causing microorganisms in animals. It explains innate and acquired immunity, antibodies, antigens, vaccination, hypersensitivity and diagnostic methods, while distinguishing infectious agents from the immune responses they produce.
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