Table 3.
Antimicrobial resistance rates of the 1,338 Salmonella strains.
| Antibiotic agent | 2016 (n = 94) | 2017 (n = 131) | 2018 (n = 234) | 2019 (n = 228) | 2020 (n = 335) | 2021 (n = 316) | 2016–2020 (n = 1338) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No. | R (%) | No. | R (%) | No. | R (%) | No. | R (%) | No. | R (%) | No. | R (%) | No. | R (%) | |
| AMP | 72 | 76.6 | 113 | 86.3 | 201 | 85.9 | 191 | 83.8 | 301 | 89.9 | 253 | 80.1 | 1131 | 84.5 |
| ATM | 0 | 0 | 47 | 35.9 | 59 | 25.2 | 73 | 32 | 69 | 20.6 | 51 | 16.1 | 299 | 22.30% |
| PIP | 24 | 25.5 | 11 | 8.4 | 16 | 6.8 | 10 | 4.4 | 0 | 0 | 3 | 0.9 | 64 | 4.80% |
| CAZ | 32 | 34 | 37 | 28.2 | 75 | 32.1 | 53 | 23.2 | 71 | 21.2 | 48 | 15.2 | 357 | 26.7 |
| CRO | 41 | 43.6 | 64 | 48.9 | 107 | 45.7 | 81 | 35.5 | 100 | 29.9 | 77 | 24.4 | 536 | 40.1 |
| CTX | 46 | 48.9 | 67 | 51.1 | 140 | 59.8 | 83 | 36.4 | 129 | 38.5 | 65 | 20.6 | 473 | 35.4 |
| FEP | 32 | 34 | 45 | 34.4 | 81 | 34.6 | 55 | 24.1 | 47 | 14 | 35 | 11.1 | 314 | 23.5 |
| SCF | 6 | 6.4 | 11 | 8.4 | 20 | 8.5 | 14 | 6.1 | 10 | 3 | 0 | 0 | 55 | 4.1 |
| CIP | 7 | 7.4 | 12 | 9.2 | 23 | 9.8 | 24 | 10.5 | 49 | 14.6 | 16 | 5.1 | 90 | 6.7 |
| IPM | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| CHL | 29 | 30.9 | 57 | 43.5 | 101 | 43.2 | 118 | 51.8 | 192 | 57.3 | 157 | 49.7 | 654 | 48.9 |
AMP, ampicillin; PIP, piperacillin/tazobactam; ATM, aztreonam; CAZ, ceftazidime; CRO, ceftriaxone; CTX, cefotaxime; FEP, cefepime; SCF, cefoperazone/sulbactam; CIP, ciprofloxacin; IPM, imipenem; CHL, chloramphenicol; R, resistant; No. represents the number of resistant strains.