File:Original antigenic sin.svg

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	03:55, 22 January 2012		240 × 270 (103 KB)	Rehua	== {{int:filedesc}} == {{Information \|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

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