Use of Radiolabelled Antiglobulin for Quantitation of Antibody to Soluble Antigens Rendered Particulate: Application to Human Sera from ‘Pigeon Fancier’s Lung Syndrome’

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Abstract
A method is described for quantitation of antibody levels in sera from human cases of ‘pigeon fancier’s lung syndrome’. The method uses a 125I-radiolabelled specific antibody to human IgG to detect antibody bound to antigen on the surface of carrier formalinized sheep erythrocytes. By comparison of counts of radioactivity with a standard antiserum, the antibody content of which was measured by a quantitative precipitin technique, antibody levels have been expressed in weight units. The results of this test have been surveyed in a group of clinical cases of pigeon fancier’s lung syndrome, a group of healthy pigeon fanciers and a group of normal controls.

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