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प्रश्न
A student on a school trip started sneezing and wheezing soon after reaching the hill station for no explained reasons. But, no return to the plains, the symptoms disappeared. What is such a response called? How does the body produce it?
लघु उत्तरीय
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उत्तर
The responses such as sneezing and wheezing for no explained reasons, are called allergies. The substances against which the immune system shows such an exaggerated response are termed as allergens. Body produces IgE type of antibody against allergens as a response. Most common example of such allergens are pollen grains, dust, etc.
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