Diagnostic agent, a process for its preparation and its use in diagnostic methods.

摘要

A process for unmasking delta antigen in the blood of an animal, known or caused to be infected with the antigen. The process involves treating serum from the animal with a surfactant and optionally with antibody - antigen dissociating agent. The blood derived delta antigen is used as a diagnostic agent in the detection and determination of different classes of antibodies to the delta agent by enzyme-immunoassay and radio-immunoassay.