Confirmation value of Western blotting in detecting anti-treponema pallidum specific antibodies with suspicious results

Table 3 Retest and confirmation results of positive samples by ELISA

Method	Result	The S/CO values by ELISA				Total number
Method	Result	1 ≤ S/CO < 2	2 ≤ S/CO < 3	3 ≤ S/CO < 5	S/CO ≥ 5	Total number
TPPA	Negative	42	17	12	5	76
TPPA	Reserve	12	15	15	16	58
WB	Negative	40	20	15	11	86
	Positive	7	1	4	6	18
	Suspicious	7	11	8	4	30

ISSN: 2047-783X