Table 3.

Sensitivity and specificity of the Chagas blot in comparison with two other commercial assays.

Test	Sensitivity	Specificity
	n = 100	n = 178
	(95% CI)	(95% CI)
Chagas Western Blot IgG assay	100	100
	(95.3–100)	(97.4–100.0)
Immunofluor CHAGAS	95.0	83.1
	(88.2–98.1)	(76.6–88.2)
Chagatest ELISA Recombinante v.4.0	99.0	91.3
	(93.8–100.0)	(85.9–91.8)