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Table 4 Resistant isolates that transferred resistance via conjugation, listed according to their resistance phenotypes.

From: Antimicrobial resistance in equine faecal Escherichia coli isolates from North West England

Antibiogram

Donor genes contributing to the phenotype of each isolate

AMP, CHL, TET, TRI (n = 6)

dfrA17, tetA, catI,TEM β-lactamase genes

 

dfrA17, catI,TEM β-lactamase genes

 

tetA, dfr1, dfrA17,TEM β-lactamase genes

 

dfrA17, dfrA12, tetB,TEM β-lactamase genes

 

dfrA12, tetA, tetB,TEM β-lactamase genes, catI

 

dfrA1, dfrA1, tetB,TEM β-lactamase genes, catI

AMP, TET, TRI (n = 2)

dfrA17, dfrA12, tetB,TEM β-lactamase genes

 

dfrA1, tetB,TEM β-lactamase genes

  1. Abbreviations: AMP, ampicillin; CHL, chloramphenicol; TET, tetracycline; TRI, trimethoprim; n = number of isolates