Table 5.

Phenotypic Antibiotic Resistance Rates in E. coli Pathotypes

Antibiotic	DEC n:32	EAEC n:11	EPEC n:9	ETEC n:6	EIEC n:3	Stx Negative EHEC O157:H7 n:3
Nalidixic acid	30 (93.7%)	11 (100%)	8 (88.8%)	5 (83.3%)	3 (100%)	3 (100%)
Ampicillin	29 (90.6%)	11 (100%)	8 (88.8%)	5 (83.3%)	3 (100%)	2 (66.6%)
Tetracycline	25 (78.1%)	10 (90.9%)	5 (55.5%)	5 (83.3%)	3 (100%)	2 (66.6%)
Cotrimoxazole	23 (71.8%)	10 (90.9%)	5 (55.5%)	3 (50%)	2 (66.6%)	3 (100%)
Chloramphenicol	18 (56.2%)	7 (63.6%)	4 (44.4%)	4(66.6%)	2 (66.6%)	1 (33.3%)
Ceftriaxone	18 (56.2%)	9 (81.8%)	5 (55.5%)	2 (33.3%)	1 (33.3%)	1 (33.3%)
Cefixime	18 (56.2%)	9 (81.8%)	5 (55.5%)	2 (33.3%)	1 (33.3%)	1 (33.3%)
Cefotaxime	18(56.2%)	9 (81.8%)	5 (55.5%)	2 (33.3%)	1 (33.3%)	1 (33.3%)
Ceftizoxime	12 (37.5%)	6 (54.5%)	4 (44.4%)	2 (33.3%)	0 (0%)	0 (0%)
Cefoxitin	9 (28.1%)	6 (54.5%)	2 (22.2%)	1 (16.6%)	0 (0%)	0 (0%)
Ceftazidime	9 (28.1%)	5 (45.4%)	4 (44.4%)	0 (0%)	0 (0%)	0 (0%)
Azithromycin	9 (28.1%)	4 (36.3%)	4 (44.4%)	0 (0%)	0 (0%)	1 (33.3%)
Ciprofloxacin	6 (18.7%)	2 (18.1%)	3 (33.3%)	0 (0%)	0 (0%)	1 (33.3%)
Gentamicin	0 (0%)	0 (0%)	0 (0%)	0 (0%)	0 (0%)	0 (0%)
Imipenem	0 (0%)	0 (0%)	0 (0%)	0 (0%)	0 (0%)	0 (0%)
MDR	25 (78.1%)	9 (81.8%)	6 (66.6%)	4 (66.6%)	3 (100%)	3 (100%)
ESBL+	18 (56.2%)	9 (81.8%)	5 (55.5%)	2 (33.3%)	1 (33.3%)	1 (33.3%)
AmpC+	9 (28.1%)	6 (54.5%)	2 (22.2%)	1 (16.6%)	0 (0%)	0 (0%)

Abbreviations: MDR, multi-drug resistance; ESBL, extended spectrum-β-lactamase.