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Table 1 mcr-1-positive and negative control isolates used in assay development and feasibility testing

From: Rapid detection of colistin resistance protein MCR-1 by LC–MS/MS

Name

Assay development

Feasibility testing

Negative control

mcr-1-containing

Negative control

mcr-1-containing

Achromobacter sp.

  

4

 

Aeromonas sp.

  

1

 

Citrobacter freundii complex

  

5

 

Citrobacter koseri

  

2

 

Chryseobacterium sp.

  

1

 

Enterobacter cloacae complex

  

9

 

E. coli

 

5*

23

1**

Enterococcus faecalis

  

1

 

Klebisella oxytoca

  

4

 

K. oxytoca/Raoutella ornitholytica

  

1

 

Klebsiella pneumonaie

  

12

2**

Morganella morganii

  

1

 

Pseudomonas aeruginosa

1

 

12

 

Proteus mirabilis

  

1

 

Pantoea sp.

1

 

0

 

Rhizobium radiobacter

  

2

 

Stenotrophomonas maltophilia

  

5

 

Serratia liquifaciens

  

1

 

Serratia marcescens

  

2

 

Sphingomonas sp.

  

1

 

Staphylococcus epidermidis

  

1

 

Staphylococcus haemolyticus

  

1

 

Total

2

5*

90

3**

  1. *4 of the isolates are from the same patient, **in triplicate for each isolate