NUTRITION
CHRONIC DISEASES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A substance that triggers an allergy is called what?
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Hay Fever
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Pollen
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Allergen
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Asthma
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Explanation:
Detailed explanation-1: -An allergen is a substance that can cause an allergic reaction. In some people, the immune system recognizes allergens as foreign or dangerous. As a result, the immune system reacts by making a type of antibody called IgE to defend against the allergen. This reaction leads to allergy symptoms.
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