Abstract
Summary
An immunodiffusion system for detection of HAA that is termed rheophoresis is described. In this system, samples containing the hepatitis-associated antigen are forced to migrate toward the antibody section of the plate. This concentration effects an increased sensitivity for detection of HAA. Comparative tests with CF, CEP, and AGD indicate that rheophoresis has sensitivity similar to that of CF and CEP, and is more sensitive than the AGD system. In addition, the Rheo test is simple to perform and identity can be readily established.
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