immune response

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Related to secondary immune response: primary immune response

immune response

[i′myün ri‚späns]
(immunology)
The physiological responses stemming from activation of the immune system by antigens, consisting of a primary response in which the antigen is recognized as foreign and eliminated, and a secondary response to subsequent contact with the same antigen.
References in periodicals archive ?
([dagger]) [greater than or equal to] 4-fold increase in, or reconversion of, high avidity IgG (2 children had 2 and 2 other children had 3 secondary immune responses).
* Differentiate the primary and secondary immune responses
The two naturally occurring trajectories of the PIR support the proof-of-concept evidence for a primed immune system resulting in primary and secondary immune responses that are not associated with the presence of infection.

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