What is a brief history of ELISA?

Asked on 23.09.2018 in A Tale of Two Cities.
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Radioimmunoassay was the only way to perform an immunoassay until the discovery of ELISA, it used the antigens and/or antibodies that are radioactive, as they provide a sort of a signal that informs if the substance (antigen/antibody) is in the sample, later when radioactivity was realiszed to be a health possible problem, thinking of alternative method that is safer was begun. The first idea came from the fact that enzymes can perform a color changing...
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