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Receiver operating characteristics (ROC) curve for the SsCBF purified antigen and crude exoantigens. The ROC is plotted between the true-positive rate (sensitivity) on the y-axis, and the false-positive rate (1-specificity) on the x-axis. The area under the curve (AUC) represents the accuracy of the ELISA test, which was 0.9936 for the SsCBF (dark gray line) and 0.9994 for the crude exoantigens (light gray line).
