Hypersensitivity Reactions

By EduMed AIIMS, CLINICAL, HYPERSENSITIVITY, MICROBIOLOGY, NEET, UPSC, USMLE 0 Comments

Hypersensitivity reactions

Four Types of Hypersensitivity:

1.Type I Hypersensitivity: Immediate; in allergy, atopy, and anaphylaxis

2.Type II Hypersensitivity: Ab-dependent Cytotoxicity

3.Type III Hypersensitivity: Immune Complex Disease

4.Type IV Hypersensitivity: delayed type/cell-mediated immune responses

hypersensitivity-reactions

Type I Hypersensitivity		Type II Hypersensitivity			Type III Hypersensitivity		Type IV Hypersensitivity
Local	Systemic	Phagocytic	Inflammatory	Antibody Mediated Cellular Dysfunction (Previously Known As Type 5 Hyper Sensitivity)	Localised	Systemic	Immune		Non-Immune Or Reactionary
Asthma	Anaphylaxis	Warm AIHA	Good Pasteur Syndrome	Graves Disease	Arthus Reaction	SLE	Infective	Noninfective	Suture
Hay Fever	Cassion’s Disease	ABO Incompatibility	Acute Rheumatic Fever	Myasthenia Gravis	Farmer’s Lung	Reactive Arthritis	MTB/ Tuberculin Skin Test	Wegners Granulomatosis	Talc
Atopy		Rh Incompatibility		Pernicious Anaemia	Hypersensitivity Pneumonitis	H S Purpura	Leprosy/ Lepromin Test	Crohn’s Disease
Casoni’s Test		ITP			Polyarteritis Nodosa (PAN)	Serum Sickness	Syphilis	Sarcoidosis
		HDN				Type II Lepra Reaction	Cat Scratch
							Histoplasmosis
							Coccioidomycosis

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