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Table 1 Characterization of E. coli isolates based on antibiotic resistance and ExPEC status

From: An exploratory study of dog park visits as a risk factor for exposure to drug-resistant extra-intestinal pathogenic E. coli (ExPEC)

Antibiotic class and antibiotic name Dog stool sample E. coli isolates n = 15 Park visitor shoe swab E. coli isolates n = 23 Control shoe swab E. coli isolates n = 16
(% resistant) (% resistant) (% resistant)
Penicillins    
Ampicillin 3 (20.0%) 5 (21.7%) 3 (18.8%)
Ampicillin Sulbactam 0 (0.0%) 2 (8.7%) 1 (6.3%)
Cephems    
Cefazolin 0 (0.0%) 3 (13.0%) 1 (6.3%)
Cefoxitin 0 (0.0%) 2 (8.7%) 1 (6.3%)
Ceftriaxone 0 (0.0%) 2 (8.7%) 1 (6.3%)
Quinolones    
Ciprofloxacin 1 (6.7%) 1 (4.3%) 0 (0.0%)
Nalidixic acide 1 (6.7%) 1 (4.3%) 0 (0.0%)
Tetracycline    
Tetracycline 2 (13.3%) 4 (17.4%) 0 (0.0%)
Folate Pathway Inhibitors    
Trimethoprim-sulfamethoxozole 0 (0.0%) 2 (8.7%) 0 (0.0%)
Aminoglycosides    
Amikacin 0 (0.0%) 0 (0.0%) 0 (0.0%)
Gentamicin 1 (6.7%) 0 (0.0%) 0 (0.0%)
Carbapenem    
Imipenem 0 (0.0%) 0 (0.0%) 0 (0.0%)
Multi-Drug Resistant    
(≥2 antibiotics) 2 (13.3%) 4 (17.4%) 1 (6.3%)
Extraintestinal pathogenic E. coli 1 Number (%) ExPEC Number (%) ExPEC Number (%) ExPEC
  5 (33%) 2 (9%) 1 (6%)
Multi-Drug Resistant ExPEC 1 Number (%) Number (%) Number (%)
(≥2 antibiotics) Multi-Drug Resistant Multi-Drug Resistant Multi-Drug Resistant
  2 (13%) 2 (9%) 0 (0%)
  1. 1Percent ExPEC and percent multi-drug resistant is calculated from total E. coli isolates.