Characteristics of Clinical Shiga Toxin-Producing Escherichia coli Isolated from British Columbia

Table 3

Antimicrobial resistance (AMR) amongst Shiga toxin-producing E. coli.

Antimicrobial agents	STEC AMR susceptibility (%)			% AMR
	Susceptible	Reduced susceptibility	Resistant	Non-O157 STEC (𝑛=15)	O157 STEC (𝑛=10)
Aminoglycosides
Amikacin	100	0	0	0	0
Gentamicin	100	0	0	0	0
Kanamycin	84	12	4	7	0
Neomycin	0	76	24	27	20
Streptomycin	72	8	20	20	20
Penicillin
Ampicillin	92	4	4	0	10
Carbapenem
Imipenem	100	0	0	0	0
Cephalosporin
Ceftazidime	96	0	4	0	10
Macrolide
Erythromycin	0	0	100	100	100
Quinolones
Ciprofloxacin	100	0	0	0	0
Nalidixic acid	100	0	0	0	0
Phenicol
Chloramphenicol	92	0	8	0	20
Ansamycin
Rifampicin	100	0	0	100	100
Spectinomycin
Spectinomycin	44	48	8	13	0
Tetracylines
Tetracycline	64	20	16	13	20
Sulfonamide
Trimethoprim	100	0	0	0	0