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Table 2 Resistance profiles and MDR frequency in E. coli isolates from equine faecal samples.

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

Abs No. of faecal samples with at least one resistant E. coli; disc diffusion method (%) No E. coli isolates exhibiting resistant phenotype Proportion of isolates resistant by disc diffusion method, which were confirmed by MIC No MDR-positive faecal samples
(% faecal samples)
AMP 89 (33.7%) 191 93.0% 57 (21.6%)
APR 1 (0.4%) 1 - 1 (0.4%)
NAL 36 (13.6%) 72 - 35 (13.3%)
CIP 28 (10.6%) 65 93.8% 28 (10.6%)
CHL 49 (18.6%) 102 100% 47 (17.8%)
FLO 9 (3.4%) 14 - 9 (3.4%)
TET 92 (34.8%) 198 93.4% 57 (21.6%)
TRI 135 (51.0%) 279 95.0% 57 (21.6%)
  1. Abbreviation: ABs, antimicrobials; AMP, ampicillin; APR, apramycin; NAL, nalidixic acid; CIP, ciprofloxacin; CHL, chloramphenicol; FLO, florfenicol; TET, tetracyclin; TRI, trimethoprim