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Positive reaction to allergen
Positive reaction to allergen

Allergen

Definition:

An allergen is a substance that can cause an allergic reaction. Allergens are substances that, in some people, the immune system recognizes as "foreign" or "dangerous" but cause no response for most people.



Information:

Common allergens include:

  • Bacteria, viruses, and animal parasites
  • Chemicals
  • Dust
  • Drugs (such as antibiotics, serums)
  • Foods (such as milk, chocolate, strawberries, wheat)
  • Perfumes
  • Plants
  • Pollen
  • Smoke

See also:



Review Date: 2/15/2007
Reviewed By: Donald Accetta, MD, MPH, President, Allergy & Asthma Care, PC, Taunton, MA. Review provided by VeriMed Healthcare Network.

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