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प्रश्न
The symptoms of an allergic reaction develop in response to ______.
रिक्त स्थान भरें
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उत्तर
The symptoms of an allergic reaction develop in response to histamine.
Explanation:
During an allergic reaction, the body’s immune system overreacts to harmless substances called allergens. This causes mast cells to release histamine, which leads to symptoms such as itching, swelling, sneezing, and inflammation.
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