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Hepatitis B virus (HBV) gene transcription may occur at very low levels resulting in HBsAg concentrations in serum and liver below the limit of detection by currently available immunoassays. An assay has been developed that combines the specificity of two high affinity anti-HBs monoclonal antibodies (MAb) directed against distinct and separate determinants in the a domain of HBsAg with the highly...
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