Which of the following is not the mediator of allergic reactions?

IgE

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IgA

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Serotonin

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Histamine

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Solution

The correct option is B IgA
Out of the different types of antibodies, IgE is the one that acts as a mediator in allergies. IgA protects the body from inhaled or ingested pathogens or pathogens in the eyes. Allergy is also mediated by the chemicals histamine and serotonin that are released from mast cells.

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