Question

Define the term "allergy".

Answer 1

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A highly sensitive reaction of the body to certain substances , such as pollen , that are present in amounts that do not effect most people...

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Answer 2

Answer:

Allergy: A misguided reaction to foreign substances by the immune system, the body system of defense against foreign invaders, particularly pathogens (the agents of infection). The allergic reaction is misguided in that these foreign substances are usually harmless.sometimes harmful