Table 3.

Comparison of vFTS scores and Og4C3 ELISA results using different ELISA cutoff criteria

		S2 as cutoff		S3 as cutoff
		Negative	Positive	Negative	Positive
vFTS scores	0	23	1	23	1
	1	23	29	42	10
	2	0	38	4	34
	3	0	76	0	76

vFTS = visual Filariasis Test Strip; ELISA = enzyme-linked immunosorbent assay.

The optical density values are obtained with standards S2 and S3, respectively.