TABLE 2.

Final classifications of MEIA-reactive sera

MEIA result (S/CO)	n	No. (%) of sera with indicated result
		True positive	Indeterminate	True negative
1–10	311	41 (13.2)	17 (5.5)	253 (81.4)
11–20	89	74 (83.1)	3 (3.4)	12 (13.5)
21–30	85	82 (96.5)	2 (2.4)	1 (1.2)
31–40	100	99 (99.0)	1 (1.0)
41–50	110	109 (99.1)		1 (0.9)
51–60	153	152 (99.3)		1 (0.7)
61–70	208	207 (99.5)	1 (0.5)
71–80	249	248 (99.6)	1 (0.4)
81–90	281	281 (100.0)
91–100	241	241 (100.0)
>100	204	204 (100.0)
Total	2,031	1,738 (85.6)	25 (1.2)	268 (13.2)