<prompt> Transfusion reaction and erythroblastosis fetalis are-Type I hypersensitivityType II hypersensitivityType III hypersensitivityType IV hypersensitivity  <response>: Ans. is b i.e., Type II hypersensitivity Schick test is an example of type III hypersensitivity or immune-complex reaction.HYPERSENSITIVITYType I IgE mediatedType II IgG IgM ando Eczemacomplement mediatedo Hay fevero Blood transfusion reactionso Asthmao Erythroblastosis fetaliso Atopyo Autoimmune hemolytico Urticariaanemia or thrombocytopeniao Anaphylactic shockor agmulocytosiso Acute dermatitiso Pemphigus vulgariso Theobald smitho Good pasture syndromephenomenono Bullous pemphigoido Prausnitz Kusntero Pernicious anemiaPK reactiono Acute rheumatic fevero Casonis testo Diabetes mellituso Schultz-Daleo Graves diseasephenomenono Myasthenia gravisHYPERSENSITIVITYType III flgG IgM. complementType IV Cell mediatedand leucocyte mediatedo Tuberculin testo Local-Arthus reactiono Lepromin testo Systemic-serum sicknesso Sarcoidosiso Schick testo Tuberculosiso Polyarteritis nodosa PANo Contact dermatitiso Rheumatoid arthritiso Granulomatous inflammationo SLEo Type I lepra reactiono Acute viral hepatitiso Patch testo Penicillamine toxicityo Temporal arteritiso Hyperacute graft rejectiono Jones mote reactiono Type 2 lepra reaction ENLcutaneous basophilic HSNo Hypersensitivity pneumonitiso Graft rejectiono R.A.o Fairleys testo Infective endocarditiso Fries testo Henoch schonlein purpura o Glomerulonephritis 