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Table 7 Resistance genes and phenotype relationship of Salmonella isolates

From: Serotype distribution, antimicrobial susceptibility, antimicrobial resistance genes and virulence genes of Salmonella isolated from a pig slaughterhouse in Yangzhou, China

Drug classes Quinolones Aminoglycosides Folate pathway inhibitors β-lactamase Tetracyclines Chloramphenicols
Ciprofloxacin
Enrofloxacin
Gentamicin, Tobramycin
Kanamycin, Neomycin
Streptomycin
Sulfonamides Trimethoprim Penicillins Cephalosporins Tetracycline Chloramphenicol
Florfenicol
Resistance genes qnr/qepA/oqxA/oqxB aadA1/aac(6′)-Ib sul1/sul2 dfrA1 blaOXA-1/blaPSE-1/blaTEM blaCMY-2 tetA/tetB/tetG catA1/floR
Number of isolates carrying drug-resistant genes 23 41 22 12 34 1 59 48
Number of drug-resistant isolates 12 33 59 24 60 0 65 39