You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Type III reaction is: and explain in detail?
Ans. is 'b' i.e., Immune complex mediated(Ref: Ananthanarayan, 9th/e, p. t621)* Type III reactions differ from type II reactions because its antigens are not attached to the surface of the cell.* Immune complex mediated (Ag - Ab mediated) - deposited in tissue.* Usually complement bound to complex - so serum level falls.* Neutrophil attracted and release enzymes.