Prevalence of Shiga Toxin-Producing Escherichia coli O157 and Non-O157 Serogroups Isolated from Fresh Raw Beef Meat Samples in an Industrial Slaughterhouse

Table 1

Comparison of toxins, antibiotic resistance, ERIC profiles, and serogroups of STEC isolates.

STEC isolates	ERIC types	Antibiotic-resistance patterns	Toxin profiles	Serogroup
1	Single	AMP/SAM/AMC/CZ/TE/SXT/CIP	hlyA/stx1	Non-O157
2	Single	AMP/SAM/AMC/CZ/TE/CIP	hly/stx2	O157
3	Single	AMP/SAM/AMC/CZ/TE	hly/stx2	Non-O157
4	A	AMP/SAM/AMC/CZ/TE	stx1	Non-O157
5	A	AMP/SAM/AMC/CZ/TE	stx1	Non-O157
6	A	AMP/SAM/AMC/CZ	stx1	Non-O157
7	B	AMP/SAM/AMC/CZ	stx1	Non-O157
8	B	AMP/SAM/AMC/CZ/TE	stx1	Non-O157

AMP: ampicillin; SAM: ampicillin-sulbactam; AMC: amoxicillin- clavulanic acid; CZ: cefazolin; TE: tetracycline; SXT: trimethoprim-sulfamethoxazole; CIP: ciprofloxacin.