Table 3. Individual and combined (sequential or in parallel) accuracies of Ag PS test and Ab PS test in detecting ASFV Ag and ASFV Ab in the blood samples of WBs from the areas endemic for ASFV in Sardinia.

Accuracy	Ag PS test	Ab PS test	Parallel testing
Sensitivity	66.7 (9.4–99.1)	-	66.7 (9.4–99.1)
Specificity	98.1 (94.5–99.6)	97.5 (93.7–99.3)	95.5 (91.0–98.2)
PPV	40.0 (5.2–85.3)	-	22.2 (2.8–60)
NPV	99.3 (96.4–99.9)	100 (96.3–100)	99.3 (96.4–99.9)

The results are expressed as percentages (%) and 95% confidence interval.

Ag, antigen; PS, pen-side; Ab, antibody; ASFV, African swine fever virus; WB, wild boar; PPV, positive predictive value; NPV, negative predictive value.