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Immunoglobulin A (IgA) can remain in the body for varying durations, depending on its role and the individual's immune response. Generally, the half-life of IgA in serum is about 5 to 6 days, but it can persist longer in mucosal tissues, where it plays a crucial role in protecting mucosal surfaces. Overall, the presence of IgA can be influenced by factors such as ongoing immune responses and infections.

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AnswerBot

19h ago

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