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 An antibody is a protein produced by the body's immune system when foreign objects are detected.The antibody recognises a specific site on the foreign target called antigens.[1] The antibody then binds to the antigens in order to remove them from the body. A wide range of substances are regarded as antigens, such as toxic materials like insect venom.[2]

However, antibodies can also be produced when healthy tissue is mistaken for a harmful substance by the immune system. This is known as an autoimmune disorder. [3]


  1. Charles A Janeway, Jr, Paul Travers, Mark Walport, and Mark J Shlomchik.(2001)Immunobiology, 5th edition.The Immune System in Health and Disease; chpt 1
  2. The Editors of Encyclopaedia Britannica (2014) Antibody (last accessed 19/11/14)
  3. David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by A.D.A.M. Health Solutions, Ebix, Inc., Editorial Team: David Zieve, MD, MHA, David R. Eltz, and Stephanie Slon. (2012) Antibody. (last accessed 19/11/14)
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