Skip to main content

Table 2 Minimum inhibitory concentrations, plasmid replicon types, and β-lactamase genes expressed by Salmonella typhimurium isolated from pigs

From: Plasmid-mediated AmpC β-lactamase (CMY-2) gene in Salmonella typhimurium isolated from diarrheic pigs in South Korea

Strain

Minimum inhibitory concentration (μg/ml)

Plasmid size (kb)/β-lactamase

Replicon type

AMP

AUG

CEP

CHL

FFN

FOX

GEN

NAL

STR

SXT

TET

XNL

S. typhimurium KVCC-BA1300259

>64

>64/32

>64

>64

>64

>32

>32

>128

>128

>4/76

>128

>8

18-25CMY-2

IncA/C IncFIB

S. typhimurium KVCC-BA1300259-TC

>64

>64/32

>64

>64

>64

>32

>32

4

>128

<0.1/2.3

>128

>8

18-25CMY-2

IncA/C IncFIB

E.coli J53 Azider

8

16/8

32

4

<2

4

<1

4

8

<0.1/2.3

<2

<0.5

  

E.coli ATCC25922

4

4/2

16

4

<2

2

<1

<2

4

<0.1/2.3

<2

<0.5

  
  1. AMP: ampicillin; AUG: amoxicillin/clavulanic acid; CEP: cephalothin; CHL: chloramphenicol; FFN: florfenicol; FOX: cefoxitin; GEN: gentamicin; NAL: nalidixic acid; STR: streptomycin; SXT: trimethoprim/sulfamethoxazole; TET: tetracycline; XNL: ceftiofur.
  2. TC: transconjugant.
  3. Azider: sodium azide resistant.