Allergy classification

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Marufa Marium, M.B.B.S[2]

Overview

Allergy may be classified into four subtypes based on duration], type of allergen, Blood IgE test and Organ involvement.

Classification

Allergy may be classified according to duration], type of allergen, Blood IgE test and Organ involvement into four subtypes[1][2][3]:

 
 
 
 
 
 
 
 
 
 
 
 
Duration
 
Early Phase Reaction, Late Phase Reaction, Chronic Allergic Reaction
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Type of Allergen
 
Pollen, Drug, Pet, Food, Insect, Latex, Mold
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Allergy
 
 
 
 
Blood IgE Test
 
Class 0 to class 4
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Organ involvement
 
Systemic Anaphylaxis, Acute Urticaria, Asthma, Allergic Rhinitis, Food Allergy
 
 
 
 
 
 

References

  1. "Allergy and Hypersensitivity - Immunobiology - NCBI Bookshelf".
  2. Siles RI, Hsieh FH (September 2011). "Allergy blood testing: A practical guide for clinicians". Cleve Clin J Med. 78 (9): 585–92. doi:10.3949/ccjm.78a.11023. PMID 21885690.
  3. Galli SJ, Tsai M, Piliponsky AM (July 2008). "The development of allergic inflammation". Nature. 454 (7203): 445–54. doi:10.1038/nature07204. PMC 3573758. PMID 18650915.

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