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Question

The hypersensitivity of the immune system to certain antigens in the environment is called _____.

A
sensitivity
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B
immunisation
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C
allergy
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D
immune reaction
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Solution

The correct option is C allergy
An abnormal hypersensitivity reaction of the body to a previously encountered allergen introduced by inhalation, ingestion, injection, or skin contact, often manifested by itchy eyes, runny nose, wheezing, skin rash, or diarrhoea, is known as an allergy.

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