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Preferred term

allergies  

Definition

  • Allergic reactions are caused when the immune system is triggered into action by an allergen, which is a protein, or antigen, producing a clinical allergic reaction. These allergens elicit a response by immunoglobulin-E (IgE), causing various symptoms depending on the body system affected. [Source: Encyclopedia of Sports Medicine; Allergies]

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https://concepts.sagepub.com/social-science/concept/allergies

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