Seroprevalence and Risk Factors of Brucellosis in Ruminants in Dhofar Province in Southern Oman

Table 3

Sensitivity and specificity of the ELISA as shown by the RBT.

Test results	RBT			Sen	Sp	PPV	NPV
	Positive	Negative	Total
ELISA
Positive	13	22	35	61.90%	94.67%	37.14%	97.99%
Negative	8	391	399
Total	21	413	424

Sen: sensitivity; Sp : specificity; PPV: positive-predicted value; NPV = negative-predicted value.