Tuesday, October 26, 2010

Allergy



Allergies are the acquisition of specific immune reactivity that is not appropriate, or known hypersensitivity, of environmental materials is not dangerous in normal circumstances, such as dust or pollen. Material causes, which are known as allergens, may be an antigen. Re-exposure to the same allergens on someone who is sensitized will trigger an immune attack, which can vary from mild reactions to severe reactions that interfere with the damage the body and can even be fatal. Weighing an allergic reaction depends on the dose, location of allergen exposure, and individual characteristics, including medication and a history of previous illness. Such disorders include allergic asthma. While anaphylactic shock is fatal allergic reactions are life-threatening risk and lead to death.

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