The anti-idiotypic antibodies Specific for anti-HBs were prepared by Immunizing New Zealand white rabbits with anti-HBs according to the method of Kennedy. The serum was first purified through IgG of normal human-Sepharose 4B affinity Column.The anti-idiotypic Specificity of the antibodies obtained was identified with ELISA or RIA inhibition test.The resultshowed that the anti-idiotypic antibodies were directed at the idiotypic determinants on anti-HBs,and no cross reaction between anti-idiotypic antibodies and normal human IgG.
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