delayed allergy


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de·layed al·ler·gy

a type IV hypersensitivity allergic reaction; so called because in a sensitized subject the reaction becomes evident hours after contact with the allergen (antigen), reaches its peak after 24-48 hours, then recedes slowly. Associated with cell-mediated responses.
See also: delayed reaction, delayed hypersensitivity. Compare: immediate allergy.
Farlex Partner Medical Dictionary © Farlex 2012

de·layed al·ler·gy

(dĕ-lād' al'ĕr-jē)
A type IV allergic reaction; so called because in a sensitized subject the reaction becomes evident hours after contact with the allergen (antigen), reaches its peak after 36-48 hours, then recedes slowly. Associated with cell-mediated responses.
See also: delayed reaction
Compare: immediate allergy
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

de·layed al·ler·gy

(dĕ-lād' al'ĕr-jē, dĕ-lād alĕr-jē)
A type IV hypersensitivity allergic reaction; in a sensitized patient, the reaction becomes evident hours after contact with the allergen, reaches a peak after 24 to 48 hours, then slowly recedes.
Medical Dictionary for the Dental Professions © Farlex 2012
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(16) This functional procedure concurrently measures all three delayed allergy pathways:
In summary, LRA by ELISA/ACT tests of delayed allergy or hidden allergy:
3) Resilient if exposed to foreign antigens and haptens without adverse effects or symptoms of acute or delayed allergy. (Haptens are small molecules that bind to the body's own proteins, distort their structure, and render them immunoreactive.
Delayed allergy mechanisms addresses the basic burden on immune defense and repair systems.