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Receiver operating characteristic (ROC) curves for pathogen biomarkers. Each point on an ROC curve is the fraction of bTB-positive cattle (true-positive rate) versus the corresponding fraction of negative bTB-exposed cattle (false-positive rate). Pks5 is the most reliable biomarker (AUC, 0.9676), and MB1895c and MB2515c are moderately reliable biomarkers (AUC, 0.8353 and 0.7671, respectively).
