Table 4.

Comparison of xTAG GPP with the routine tests and the results of XTAG GPP for the detection of enteric pathogens from patients with persistent and chronic diarrhea

Class	Target	GPP	No. of samples by routine tests		Performance of the xTAG GPP assay
			+	–	Sensitivity	%Specificity
Virus	Adenovirus 40/41	+	0	0
		–	0	199	0	100(199/199)
	Rotavirus A	+	63	6
		–	2	50	96.9(63/65)	89.3(50/52)
	Norovirus GI/GII	+	22	19
		–	0	158	100(22/22)	89.3(158/177)
Bacteria	Salmonella	+	2	15
		–	4	182	33.3(2/6)	92.3(182/197)
	Campylobacter	+	43	0
		–	0	199	100(43/43)	100(199/199)
	Shigella	+	1	3
		–	0	195	100 (1/1)	98.5(195/198)
	ClostridiumdifficileToxin A/B	+	27	3
		–	0	169	100(27/27)	84.9(169/172)
	ETEC	+	0	0
		–	0	199	0	100(199/199)
	EscherichiacoliO157	+	0	2
		–	0	197	0	99.0(192/199)
	STEC	+	0	0
		–	0	199	0	100(199/199)
	Yersinia enterocolitica	+	0	0
		–	0	199	0	100(199/199)
	Vibrio cholerae	+	0	0
		–	0	199	0	100(199/199)
Parasite	Giardia	+	0	0
		–	0	199	0	100(199/199)
	Entamoeba histolytica	+	0	1
		–	0	198	0	99.5(198/199)
	Cryptosporidium	+	0	2
		–	0	197	0	99.0(197/199)
		+	158	51
	Total	–	6	2739	96.3(158/166)	98.2(2739/2790)