Figure 3From: Evaluation of the performance of the IFN-γ release assay in bovine tuberculosis free herds from five European countriesROC curve of the performance of the IDvet kit against the result of Bovigam kit. Red dot represents the optimal cut-off point for maximum specificity and sensitivity (S/P = 15.175%) along with the specificity (96.1%) and sensitivity (96.7%)Back to article page