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Image: Original antigenic sin

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Description: Original antigenic sin, descriptive diagram. en:Original antigenic sin refers to the propensity of the body's immune system to preferentially utilize immunological memory based on a previous infection when a second slightly different version of that foreign entity is encountered.
Title: Original antigenic sin
Credit: This file was derived from  Original antigenic sin.png: 
Author: Original_antigenic_sin.png: User:DO11.10 derivative work: Hazmat2 (talk)
Usage Terms: Creative Commons Attribution-Share Alike 3.0
License: CC BY-SA 3.0
License Link: http://creativecommons.org/licenses/by-sa/3.0
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