Serum sickness syndrome is classified as which type of hypersensitivity reaction?

Show Answers

Type I hypersensitivity (Anaphylactic reaction)Angioedema involving nerve-related swellingDelayed hypersensitivity mediated by T-cellsA systemic Arthus-type immune complex reactionNone of the above

Explanation

Serum sickness is a classic example of a systemic Arthus reaction, which is a type III hypersensitivity involving immune complex deposition. It differs from anaphylaxis (type I), angioedema, and cell-mediated immunity (type IV).