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Table 1 Characteristics and comparison of AmpC-producing Salmonella donor strains and Escherichia coli transconjugants

From: Characterization of Salmonella enterica serovars recovered from meat products legally and illegally imported into the EU reveals the presence of multiresistant and AmpC-producing isolates

Isolate Resistance genes Inc. group of transferred Plasmid Resistance phenotype MIC values (µg/ml)
AMP AMC CTX CAZ NAL CIP SMX TET
253 blaCMY-2, tet(A), sul2 IncA/C BLA, NAL, (CIP), SMX, TET > 64 > 32/16 > 4 > 8 > 128 0.5 > 1024 > 64
TC253 (HK225 transconjugant) blaCMY-2, tet(A), sul2 BLA, SMX, TET > 64 > 32/16 > 4 > 8 8 0.06 >1024 32
300 blaCMY-2, tet(A), sul2 IncI1 BLA, NAL, CIP, SMX, TET > 64 > 32/16 > 4 > 8 > 128 1 > 1024 > 64
TC300 (HK225 transconjugant) bla CMY-2 BLA > 64 > 32/16 > 4 > 8 8 0.06 32 ≤ 2
417 blaCMY-2, tet(A), sul2 IncA/C BLA, NAL, CIP, SMX, TET > 64 > 32/16 > 4 > 8 > 128 1 > 1024 > 64
TC417 (HK225 transconjugant blaCMY-2, tet(A), sul2 BLA, SMX, TET > 64 > 32/16 > 4 > 8 8 0.06 >1024 32
E. coli HK225 2 ≤ 2/1 ≤ 0.25 ≤ 0.5 8 0.06 32 ≤ 2
  1. AMC amoxicillin/clavulanate (2:1), AMP ampicillin, BLA β-lactams, CAZ ceftazidime, CIP ciprofloxacin, CTX cefotaxime, NAL nalidixic acid, SMX sulfamethoxazole, TET tetracycline