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

Table 2 Retest and confirmation results of negative samples by ELISA

Method	Result	The S/CO values by ELISA		Total number
Method	Result	S/CO < 0.5	0.5 ≤ S/CO < 1	Total number
TPPA	Positive	6	16	22
TPPA	Reserve	1	6	7
WB	Negative	1	6	7
	Positive	3	10	13
	Suspicious	3	6	9

ISSN: 2047-783X