Characterization of Shiga Toxigenic Escherichia coli O157 and Non-O157 Isolates from Ruminant Feces in Malaysia

Table 2

Bacterial strains used in the study.

Strain ID	Serogroup	Source	Country	Virulence traits
Sakai	O157	Radish sprouts	Japan	, eaeA, ehxA
ATCC 43895	O157	Ground beef	USA	, eaeA, ehxA
EC543a	O157	Cattle feces	Australia	, eaeA, ehxA
EC6a	O157	Cattle feces	Australia	, eaeA, ehxA
1 UPM^a	O157	Bovine milk	Malaysia	, eaeA, ehxA
2 UPM^a	O157	Bovine milk	Malaysia	, eaeA, ehxA
3 UPM^a	O157	Beef	Malaysia	, eaeA, ehxA
4 UPM^a	O157	Beef	Malaysia	, eaeA, ehxA
MG1655 (E. coli K-12)	OR:H48:K-^b	Laboratory strain	USA	None
EC3008a^c	O26	Cattle feces	Australia	eaeA
EC3009a^c	O45	Cattle feces	Australia	None
EC2998a^c	O103	Cattle feces	Australia	None
EC3113a^c	O111	Cattle feces	Australia	None
EC3111a^c	O121	Cattle feces	Australia	None

Provided by Professor Son Radu at Universiti Putra Malaysia.
^bOR = O antigen rough strain which does not produce a typeable O antigen.
. coli non-O157 strains used as controls in the study, provided by Lesley Duffy at CSIRO, Brisbane, Australia.