Molecular and in silico analyses for detection of Shiga toxin-producing Escherichia coli (STEC) and highly pathogenic enterohemorrhagic Escherichia coli (EHEC) using genetic markers located on plasmid, O Island 57 and O Island 71

Table 3 Presence of genetic/virulence markers in 42/96 STEC and EHEC isolates included in this study

Serogroup	No. of isolates	Host
		Host	ecf1	Z2098	Z2099	nleA	stx^a	eae	ehxA
*Top 7*
O26	4	Cattle	+	+	+	+	+¹	+	+
O26	1	Cattle	-	+	+	+	+¹	+	-
O111	2	Cattle	+	+	+	-	+¹	+	+
O111	1	Cattle	+	+	+	-	+¹	+	-
O103	3	Sheep	-	+	-	-	+¹	-	-
O103	1	Goat	-	+	+	-	+^1/2	-	+
O103	1	Goat	-	+	+	-	+¹	-	-
O157^b	1	Human	+	+	+	+	+^1/2	+	+
*Others*
O113	1	Cattle	-	-	+	-	+^1/2	-	+
O113	1	Goat	-	-	+	-	+^1/2	-	+
O5	8	Sheep	-	-	+	-	+^1/2	-	+
O5	3	Sheep	-	-	+	-	+¹	-	+
O5	1	Goat	-	-	+	-	+^1/2	-	+
O91	2	Sheep	-	-	+	-	+^1/2	-	+
O91	1	Goat	-	-	+	-	+^1/2	-	+
ND^c	1	Cattle	+	+	+	+	+¹	+	+
ND	4	Cattle	-	-	+	-	+²	-	-
ND	1	Goat	-	-	+	-	+²	-	-
ND	2	Cattle	-	-	+	-	+¹	-	+
ND	2	Sheep	-	-	+	-	+¹	-	+
ND	1	Sheep	-	+	+	-	+¹	-	-

ISSN: 1746-6148