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Table 3 The distribution of resistance phenotypes among Escherichiacoli isolates from pups in two kennels (A and B).

From: Clonal spread of antimicrobial-resistant Escherichia coli isolates among pups in two kennels

Resistance patternsa No. of resistant isolates (%)/No. of pups that harboured resistant isolate (s) (%)
  Total Kennel A Kennel B
  (n = 86/43) (n = 50/25) (n = 36/18)
AMP-CFZ-CFT-OTC-CHL-NAL-ENR 5 (5.8)/3 (7.0) 0 (0)/0 (0) 5 (13.9)/3 (16.7)
AMP-DHS-GEN-KAN-OTC-CHL-SXT 3 (3.5)/2 (4.7) 3 (6.0)/2 (8.0) 0 (0)/0 (0)
AMP-DHS-GEN-OTC-CHL-NAL-SXT 1 (1.2)/1 (2.3) 1 (2.0)/1 (4.0) 0 (0)/0 (0)
AMP-DHS-GEN-OTC-CHL-SXT 11 (12.8)/9 (20.9) 11 (22.0)/9 (36.0) 0 (0)/0 (0)
AMP-DHS-GEN-CHL-SXT 1 (1.2)/1 (2.3) 1 (2.0)/1 (4.0) 0 (0)/0 (0)
AMP-DHS-OTC-SXT 2 (2.3)/1 (2.3) 2 (4.0)/1 (4.0) 0 (0)/0 (0)
AMP-DHS-CHL-SXT 1 (1.2)/1 (2.3) 1 (2.0)/1 (4.0) 0 (0)/0 (0)
AMP-DHS-SXT 16 (18.6)/13 (30.2) 8 (16.0)/8 (32.0) 8 (22.2)/5 (27.8)
AMP-DHS-CHL 1 (1.2)/1 (2.3) 1 (2.0)/1 (4.0) 0 (0)/0 (0)
AMP-DHS 10 (11.6)/6 (14.0) 0 (0)/0 (0) 10 (27.8)/6 (33.3)
DHS-SXT 1 (1.2)/1 (2.3) 0 (0)/0 (0) 1 (2.8)/1 (5.6)
AMP 1 (1.2)/1 (2.3) 1 (2.0)/1 (4.0) 0 (0)/0 (0)
DHS 10 (11.6)/7 (16.3) 7 (14.0)/5 (20.0) 3 (8.3)/2 (11.1)
OTC 1 (1.2)/1 (2.3) 1 (2.0)/1 (4.0) 0 (0)/0 (0)
NAL 1 (1.2)/1 (2.3) 1 (2.0)/1 (4.0) 0 (0)/0 (0)
Susceptible 21 (24.4)/13 (30.2) 12 (24.0)/7 (28.0) 9 (25.0)/6 (33.3)
  1. aAMP, ampicillin; CFZ, cefazolin; CEF, ceftiofur; DHS, dihydrostreptomycin; GEN, gentamicin; KAN, kanamycin; OTC, oxytetracycline; CHL, chloramphenicol; NAL, nalidixic acid; ENR, enrofloxacin; SXT, trimethoprim-sulfamethoxazole.