. 2015 Oct 11;2015:382403. doi: 10.1155/2015/382403

Table 3.

STEC O157 and non-O157 and their virulence profiles.

STEC serogroup	Number of STEC+ samples (%)	Source	Number of isolates	Virulence factors	Lineage	SBI profile
O157:H7^a	6 (4%)	Cattle feces	28^b	stx _2c, eaeA-γ1, ehxA	II	SY2c
O157:H7^a	6 (4%)	Cattle feces	4^b	stx _2c, eaeA-γ1 ehxA	II	SY2c

Non-O157^a (unknown)	2 (1.5%)	Cattle feces	1	stx _1a, stx _2a, stx _2c, ehxA	—	—
Non-O157^a (unknown)	2 (1.5%)	Cattle feces	1	stx ₁	—	—

^aIsolates of STEC O157:H7 and non-O157 were only present in samples obtained from farm A. All samples from farms B–F were negative for STEC O157:H7 and non-O157 isolates.

^bOn farm A, 28 of the STEC O157 isolates belonged to one PFGE group (at >92% similarity) and the remaining 4 isolates belonged to another PFGE group.

—: not applicable.