Table 2.

Prevalences of virulence factors from isolated STEC (n = 1,105 isolates)

stx1	stx2	eae	EHEC-hlyA	no. (%) of pos. Isolates (total: 1,105)
-	+	-	+	434	(39.3%)
+	+	-	+	311	(28.1%)
-	+	-	-	145	(13.1%)
+	+	-	-	56	(5.1%)
-	+	+	+	43	(3.9%)
+	-	-	-	35	(3.2%)
+	-	-	+	33	(3.0%)
+	-	+	+	24	(2.2%)
+	+	+	+	17	(1.5%)
-	+	+	-	4	(0.4%)
+	+	+	-	2	(0.2%)
+	-	+	-	1	(0.1%)

pos.: positive

%: percentage