Definition for Allergy
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Revision as of 14:59, 29 March 2018 by Bio man (Talk | contribs) (Created page with "A misguided reaction to foreign substances by the immune system, the body system of defense against foreign invaders, particularly pathogens (the agents of infection).")
A misguided reaction to foreign substances by the immune system, the body system of defense against foreign invaders, particularly pathogens (the agents of infection).
