Table 3.

Assay disagreement by McNemar's test comparing two assays (n = 40)^c

ELISPOT-MNT result	PRNT result (no.)		Total no. of results
	Positive	Negative
Positivea	22	2	24
Negativeb	1	15	16
Total	23	17	40

^aIC₅₀, ≤50 μg/ml.

^bIC₅₀, >50 μg/ml.

^cSignificance level (P = 1.000) is a statistical measure of the assay disagreement determined using McNemar's test. Using the PRNT as a reference, the sensitivity and specificity of ELISPOT-MNT were 95.6% (22/23) and 88.24% (15/17), respectively.