Diseases

Hypersensitivity

Altered reactivity to an antigen, which can result in pathologic reactions upon subsequent exposure to that particular antigen.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

Altered reactivity to an antigen, which can result in pathologic reactions upon subsequent exposure to that particular antigen.

MeSH Record

Classification

Related Concepts

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MeSH Record

See Also

MeSH Record

Synonyms

7 entry terms
  • Allergy
  • Allergies
  • Hypersensitivities
  • Allergic Reaction
  • Allergic Reactions
  • Reaction, Allergic
  • Reactions, Allergic

MeSH Record

Aspects Covered

34 allowable subheadings

Indexed with the subheadings blood, cerebrospinal fluid, classification, complications, congenital, diagnosis, diagnostic imaging, diet therapy, drug therapy, economics, embryology, enzymology, epidemiology, ethnology, etiology, genetics, history, immunology, metabolism, microbiology, mortality, nursing, parasitology, pathology, physiopathology, prevention & control, psychology, radiotherapy, rehabilitation, surgery, therapy, urine, veterinary, virology.

MeSH Record

Indexing Annotation

IM; use qualif with caution; /drug ther: consider also ANTI-ALLERGIC AGENTS; atopic = HYPERSENSITIVITY, IMMEDIATE; to food = FOOD HYPERSENSITIVITY; to light = PHOTOSENSITIVITY DISORDERS; RESPIRATORY HYPERSENSITIVITY is also available; in occup or environ exposure MULTIPLE CHEMICAL SENSITIVITY is also available

MeSH Record

History Note

66; was ALLERGY 1963-65

MeSH Hierarchy

Tree Number

  1. C20w.543w

AMA Style

References

  1. National Library of Medicine. Hypersensitivity. Medical Subject Headings (MeSH). 2026. Unique ID D006967. http://id.nlm.nih.gov/mesh/2026/D006967
  2. Hypersensitivity. In: Wikipedia. https://en.wikipedia.org/wiki/Hypersensitivity
  3. Hypersensitivity. In: Wikidata. https://www.wikidata.org/wiki/Q5958765