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Quantitative analysis of serum T. pallidum specific antibodies detected by ELISA and CLIA . (a) Correlation of serum T. pallidum specific antibodies’ levels between ELISA and CLIA. (b and c) Correlation of serum T. pallidum specific antibodies’ levels between CLIA or ELISA and TPPA. (d) ROC analysis of CLIA and ELISA for serum T. pallidum specific antibodies detection with TPPA as the confirmatory test.
