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What is Example of Type IV hypersensitivity is - and explain in detail?
Ans. (b) Granulomatous reaction(Ref: Robbins 9th/pg 208-211; 8th/pg 205-208; Illustrated Dictionary of Immunology by M.P.Arora - Page 501)Granulomatous reaction is an example of type IV hypersensitivitySerum sickness & Arthus reactions are examples of type III hypersensitivityShwartzman reaction is a non-immunologic phenomenon in which endotoxin (lipopolysaccharide) induces local & systemic reactions; It can either be local or systemic type;