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Posted: January 8, 2015

A substance that causes your body’s immune system to react. This reaction often involves production of antibodies. For example, your immune system’s response to antigens that are part of bacteria and viruses helps you resist infections. Cancer cells have certain antigens that can be found by laboratory tests. They are important in cancer diagnosis and in watching response to treatment.
antigen was last modified: February 7th, 2017 by Geoff Duncan

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