Ann Clin Microbiol 2025;29(1):4. Antibiotic resistance patterns of pathogenic Escherichia coli isolated from southeastern Korean patients with acute diarrhea from October 2023 to June 2024: a cross-sectional surveillance study
| Variables | Pediatrics (n = 120) | Adults (n = 72) |
|---|---|---|
| Antibiotic resistance rates, n (%) | ||
| AMP | 97 (81.0) | 51 (70.4) |
| AMC | 67 (56.2) | 17 (23.9) |
| PT | 28 (23.1) | 2 (2.8) |
| CFZ | 76 (63.6) | 29 (40.9) |
| CTX | 59 (48.8) | 14 (19.4) |
| CAZ | 35 (28.9) | 6 (8.3) |
| FEP | 8 (6.6) | 3 (4.2) |
| IPM | 0 (0.0) | 1 (1.4) |
| MEM | 0 (0.0) | 0 (0.0) |
| ETP | 0 (0.0) | 0 (0.0) |
| AMK | 1 (0.8) | 0 (0.0) |
| GEN | 14 (11.6) | 7 (9.9) |
| CIP | 19 (15.7) | 10 (14.1) |
| SXT | 42 (34.7) | 25 (35.2) |
| NIT | 1 (0.8) | 0 (0.0) |
| ATM | 4 (3.3) | 0 (0.0) |
| FOX | 4 (3.3) | 0 (0.0) |
| TGC | 4 (3.3) | 0 (0.0) |
| MDRa), n (%) | ||
| EAEC | 25 (43.1) | 5 (18.5) |
| EPEC | 15 (31.9) | 3 (15.0) |
| ETEC | 1 (11.1) | 3 (13.6) |
a) Samples simultaneously positive for Shiga toxin-producing E. coli, E. coli O157, and EAEC/EPEC were excluded from the MDR analysis because of the small sample size.
Abbreviations: AMP, ampicillin; AMC, amoxicillin-clavulanic acid; PT, piperacillin-tazobactam; CFZ, cefazolin; CTX, cefotaxime; CAZ, ceftazidime; FEP, cefepime; IPM, imipenem; MEM, meropenem; ETP, ertapenem; AMK, amikacin; GEN, gentamicin; CIP, ciprofloxacin; SXT, sulfamethoxazole- trimethoprim; NIT, nitrofurantoin; ATM, aztreonam; FOX, cefoxitin; TGC, tigecycline; MDR, multidrug resistance; EAEC, enteroaggregative Escherichia coli; EPEC, enteropathogenic Escherichia coli; ETEC, enterotoxigenic Escherichia coli.