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Table 1 Antimicrobial susceptibility profiles of 267 aEPEC strains isolated from different sources

From: Occurrence of multidrug-resistant and ESBL-producing atypical enteropathogenic Escherichia coli in China

Class/antimicrobial No. of resistant isolates from different sources (%) Total P value
Diarrheal patient (151) Healthy carrier (32) Animal (51) Raw meat (33)
Penicillins
 Ampicillin 84 (55.6) 15 (46.9) 20 (39.2) 13 (39.4) 132 (49.4) 0.1185
 Piperacillin 71 (47.0) 13 (40.6) 19 (37.3) 7 (21.2) 110 (41.2) 0.0484
β-Lactam/β-lactamase inhibitor combinations
 Amoxicillin–clavulanic acid 14 (9.3) 0 10 (19.6) 3 (9.1) 27 (10.1) 0.0319
 Ampicillin–sulbactam 24 (15.9) 0 11 (21.6) 9 (27.3) 44 (16.5) 0.0177
Cephems
 Cefepime 14 (9.3) 3 (9.4) 0 0 17 (6.4) 0.0396
 Cefotaxime 39 (25.8) 5 (15.6) 1 (2.0) 4 (12.1) 49 (18.4) 0.0013
 Ceftriaxone 38 (25.2) 5 (15.6) 2 (3.9) 3 (9.1) 48 (18.0) 0.0029
 Ceftazidime 7 (4.6) 1 (3.1) 0 0 8 (3.0) 0.2622
 Cefuroxime 39 (25.8) 5 (15.6) 2 (3.9) 6 (18.2) 52 (19.5) 0.0071
Monobactams
 Aztreonam 20 (12.6) 3 (9.4) 0 1 (3.0) 23 (8.6) 0.0202
Carbapenems
 Imipenem 0 0 0 0 0
 Meropenem 0 0 0 0 0
Aminoglycosides
 Gentamicin 57 (37.7) 3 (9.4) 11 (21.6) 6 (18.2) 77 (28.8) 0.0019
 Kanamycin 22 (14.6) 1 (3.1) 9 (17.6) 7 (21.2) 39 (14.6) 0.1782
 Streptomycin 78 (51.7) 9 (28.1) 20 (39.2) 16 (48.5) 123 (46.1) 0.0692
Tetracyclines
 Tetracycline 89 (58.9) 15 (46.9) 21 (41.2) 21 (63.6) 146 (54.7) 0.0816
Quinolones
 Nalidixic acid 62 (41.1) 7 (21.9) 17 (33.3) 8 (24.2) 94 (35.2) 0.0866
Fluoroquinolones
 Ciprofloxacin 8 (5.3) 0 4 (7.8) 1 (3.0) 13 (4.9) 0.4053
 Norfloxacin 5 (3.3) 0 4 (7.8) 0 9 (3.4) 0.1447
 Levofloxacin 8 (5.3) 0 4 (7.8) 0 12 (4.5) 0.2020
Folate pathway inhibitors
 Trimethoprim–sulfamethoxazole 72 (47.7) 6 (18.8) 18 (35.3) 9 (27.3) 105 (39.3) 0.0060
Phenicols
 Chloramphenicol 11 (7.3) 0 9 (17.6) 8 (24.2) 28 (10.5) 0.0020
Nitrofurans
 Nitrofurantoin 3 (2.0) 0 1 (2.0) 0 4 (1.5) 0.7275