<prompt> Frei test which type of hypersensitivity -Type IType IIType IIIType IV  <response>: Ans. is d i.e.. Type IV HYPERSENSITIVITYType I IgE mediatedTvpe II IgG, IgM andcomplement mediated!o Eczemao Blood transfusion reactionso Hay fevero Endhroblastosis fetaliso Asthmao Autoimmune hemolytic anemia or thrombocytopenia or agranulocylosiso Atopyo Urticariao Anaphylactic shocko Pemphigus vulgariso Acute dermatitiso Good pasture syndromeo Theobald smith phenomenono Bullous pemphigoido Pernicious anemiao Prausnitz Kusnter PK reactiono Acute rheumatic fevero Diabetes mellituso Casonis testo Graves diseaseo Schultz-Dale phenomenono Myasthenia gravisType III IgG, IgM. Comolement and leucocyte mediatedTvpe IV Cell mediatedo Local-Arthus reactiono Tuberculin testo Systemic-serum sicknesso Lepromin testo Schick testo Sarcoidosiso Polyarteritis nodosa PANo Tuberculosiso Rheumatoid arthritiso Contact dermatitiso SLEo Granulomatous inflammationo Acute viral hepatitiso Type I lepra reactiono Penicillamine toxicityo Patch testo Hyperacute graft rejectiono Temporal arteritiso Type 2 lepra reaction ENLo Jones mote reaction cutaneous basophilic HSNo Hypersensitivity pneumonitiso R.A.o Graft rejectiono Infective endocarditiso Fairleys testo Henoch schonlein purpurao Fries test 