TABLE 1.

Sensitivity and specificity of Brucella dipstick assay

Brucella assay and result (n)	Brucella dipstick assay result (no. of specimens)		% Sensitivitya	% Specificityb
	Positive	Negative
Culture positive (25)	23	2	92
Agglutination positive (5)	5	0		100
Culture or agglutination test positive (30)	28	2	93
Culture and agglutination test negative (55)	4	51		93

^aCalculated by dividing the number of true positives by the total number of positives (true positives and false negatives).

^bDetermined by dividing the number of true negatives by the total negatives (true negatives plus false positives).