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प्रश्न
Define the term “allergy”.
उत्तर
Allergies, also known as allergic diseases, are a number of conditions caused by hypersensitivity of the immune system to something in the environment that usually causes no adverse effects to most people. These diseases include hay fever, dermatitis, asthma, food allergies, etc.
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संबंधित प्रश्न
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Allergy
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