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Antibody
Definition
Antibodies are a type of protein. They are produced by the immune system in response to foreign substances that may be a threat to the body -- such as chemicals, virus particles, spores, or bacterial toxins. These foreign substances are called antigens.
Each type of antibody is unique and defends the body against one specific type of antigen.
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Review Date : 4/26/2003
Reviewed By : David Webner, M.D., Department of Family Medicine, University of Pennsylvania Medical Center, Philadelphia, PA. Review provided by VeriMed Healthcare Network.
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