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Fig. 4 | BMC Veterinary Research

Fig. 4

From: Development of monoclonal antibodies and serological assays including indirect ELISA and fluorescent microsphere immunoassays for diagnosis of porcine deltacoronavirus

Fig. 4

Receiver operator characteristic (ROC) validation and determination of diagnostic sensitivity (DSe) and specificity (DSp) of the PDCoV-NP ELISA and FMIA assays. DSe and DSp were calculated using serum samples from known PDCoV-infected and known PDCoV-uninfected populations. ROC analysis was performed using MedCalc version 11.1.1.0 (MedCalc software, Mariakerke, Belgium). In each panel, the dot plot on the left represents the negative population, and the plot on the right represents the positive population. The horizontal line bisecting the dot plots for each figure represents the tentative cutoff value that gives the optimal DSe and DSp

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