Pathology True about NK cells are all of the following except: March 2005 A Mediates type IV hypersensitivity B Kill viruses C They are large granular lymphocytes D Releases small cytoplasmic granules of proteins called perforin and granzyme 💡 Explanation True about NK cells are all of the following except: March 2005 ✓ Correct Answer: A. Mediates type IV hypersensitivity