Allergen

What is Allergen?

Allergen meaning An allergen is a substance that causes an allergic response. Examples include pollen, molds, and certain foods.A hypersensitive immune reaction to a substance that normally is harmless or would not cause an immune response in most people. An allergic response may cause harmful symptoms such as itching or inflammation or tissue injury.

 

reference: national Cancer Institute – Glossary for Registrars

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