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Table 1 Phenotypic and genotypic features of the Salmonella isolates

From: First description of plasmid-mediated quinolone resistance determinants and β-lactamase encoding genes in non-typhoidal Salmonella isolated from humans, one companion animal and food in Romania

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
  1. NAL nalidixic acid, CIP ciprofloxacin, LEV levofloxacin, AMP ampicillin, PIP piperacillin, CTX cefotaxime, CAZ ceftazidime, GEN gentamicin, AMK amikacin, TOB tobramycin, NIT nitrofurantoin, SMX sulfamethoxazole, TMT trimethoprim, TET tetracycline, PMQR plasmid-mediated quinolone resistance, – no genes identified; MIC minimum inhibitory concentration.