Table 1 Phenotypic and genotypic features of the Salmonella isolates
No. | Serovar | Source | MIC (μg/mL) | PMQR/β-lactamase genes | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
NAL | CIP | LEV | AMP | PIP | CTX | CAZ | GEN | AMK | TOB | NIT | SMX | TMT | TET | ||||
1. | S. Infantis | Meat-chicken | >64 | 1 | 2 | ≥32 | ≤16 | 0.25 | 1 | <1 | <1 | <1 | ≥512 | >1,024 | <1 | >64 | bla SHV, qnrS, qepA |
2. | S. Infantis | Meat-chicken | >64 | 1 | 4 | ≥32 | ≤16 | 4 | 1 | <1 | <1 | <1 | ≥512 | >1,024 | ≥32 | >64 | bla PSE-1, bla CTX-M, qepA |
3. | S. Enteritidis | Meat-chicken | <4 | 0.03 | 1 | 8 | ≤16 | 0.12 | 0.25 | <1 | <1 | <1 | ≤32 | 64 | <1 | 2 | – |
4. | S. Infantis | Meat-chicken | >64 | 2 | 4 | 8 | ≤16 | 0.25 | 1 | <1 | <1 | <1 | ≤32 | >1,024 | ≥32 | >64 | qnrA, aac(6′)-Ib-cr |
5. | S. Infantis | Meat-pork | >64 | 0.5 | 4 | 8 | ≤16 | 0.25 | 0.5 | <1 | <1 | <1 | ≤32 | >1,024 | <1 | >64 | qnrB, qepA |
6. | S. Infantis | Meat-chicken | >64 | 0.5 | 4 | 8 | ≤16 | 0.25 | 1 | <1 | <1 | <1 | ≤32 | >1,024 | ≥32 | >64 | – |
7. | S. Infantis | Meat-chicken | >64 | 0.5 | 2 | 4 | ≤16 | 0.12 | 0.5 | <1 | <1 | <1 | ≥512 | >1,024 | <1 | >64 | qnrA, aac(6′)-Ib-cr |
8. | S. Derby | Meat-pork | >64 | 1 | 2 | 2 | ≤16 | 0.25 | 1 | <1 | <1 | <1 | ≤32 | >1,024 | <1 | >64 | qnrA, qnrB |
9. | S. Infantis | Meat-chicken | >64 | 1 | 4 | ≥32 | ≥128 | 4 | 1 | ≤2 | ≤2 | ≤2 | ≥512 | >1,024 | ≥32 | 2 | bla PSE-1, bla CTX-M, qnrS |
10. | S. Enteritidis | Human-stool | >64 | 1 | 2 | 8 | ≤16 | 0.25 | 0.5 | <1 | <1 | <1 | ≥512 | >1,024 | <1 | 2 | qnrB, qnrS, aac(6′)-Ib-cr |
11. | S. Enteritidis | Human-stool | <4 | 0.03 | 1 | 4 | ≤16 | 0.12 | 0.5 | <1 | <1 | <1 | ≤32 | 64 | <1 | 2 | – |
12. | S. Enteritidis | Human-stool | <4 | 0.5 | 2 | 4 | ≤16 | 0.12 | 1 | <1 | <1 | <1 | ≤32 | 64 | <1 | 2 | – |
13. | S. Enteritidis | Human-stool | <4 | 1 | 2 | ≥32 | ≤16 | 0.25 | 1 | <1 | <1 | <1 | ≤32 | 64 | <1 | 2 | bla TEM |
14. | S. Enteritidis | Human-stool | >64 | 1 | 4 | 8 | ≤16 | 0.25 | 0.5 | <1 | <1 | <1 | ≤32 | 64 | <1 | 2 | – |
15. | S. Enteritidis | Human-stool | >64 | 2 | 4 | ≥32 | ≤16 | 0.25 | 0.5 | <1 | <1 | <1 | ≥512 | 64 | <1 | 2 | bla TEM, bla PSE-1, bla SHV, qnrA, aac(6′)-Ib-cr |
16. | S. Enteritidis | Human-stool | <4 | 0.03 | 1 | 2 | ≤16 | 0.12 | 1 | <1 | <1 | <1 | ≤32 | 64 | <1 | 2 | – |
17. | S. Enteritidis | Human-stool | <4 | 0.03 | 1 | 2 | ≤16 | 0.12 | 1 | <1 | <1 | <1 | ≤32 | 64 | ≥32 | 2 | – |
18. | S. Enteritidis | Human-stool | >64 | 1 | 4 | 4 | ≤16 | 0.12 | 1 | <1 | <1 | <1 | ≥512 | >1,024 | <1 | 2 | qnrA |
19. | S. Infantis | Human-stool | >64 | 1 | 4 | ≥32 | ≥128 | 4 | 1 | ≤2 | ≤2 | ≤2 | ≥512 | 64 | <1 | 2 | bla SHV, qnrA, qnrS, aac(6′)-Ib-cr |
20. | S. Infantis | Dog-stool | >64 | 1 | 2 | ≥32 | ≥128 | 4 | 1 | ≤2 | ≤2 | ≤2 | ≥512 | 64 | <1 | 2 | bla PSE-1, bla CTX-M, bla TEM, qnrB, qnrS, qepA |