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Table 3 Distribution of antimicrobial resistance by species of Staphylococcus and antimicrobial agent

From: An Exploratory Descriptive Study of Antimicrobial Resistance Patterns of Staphylococcus Spp. Isolated from Horses Presented at a Veterinary Teaching Hospital

  Resistant Isolates MDR Isolates
% 95% CI % 95% CI
Species   n = 123   n = 35
S. aureus 72.5 58.3, 83.3a 52.9 38.5, 67.1a
S. pseudintermedius 38.9 19.2, 63.0b 16.7 3.6, 41.4b
S. spp 1 30.4 18.7, 45.4b 2.2 0.1, 11.5c
 All other species2 75.0 34.9, 96.8a 50.0 15.7, 84.3a
Antimicrobial & Antimicrobial Class   n = 64   n = 35
 Aminoglycosides3
  Gentamycin 54.6 42.1, 66.7a 48.9 38.1, 59.8
  Amikacin 14.1 7.3, 25.2e 9.1 4.0, 17.1
 Β-lactams4
  Ampicillin 84.5 72.3, 91.9b 37.5 27.4, 48.5
  Penicillin 74.1 61.0, 84.0b 37.5 27.4, 48.5
  Ceftriaxone 44.8 32.3, 58.1c 30.0 20.3, 41.3
 Fluoroquinolones5
  Enrofloxacin 23.4 14.5, 35.7c 18.8 10.1, 30.5b
 Folate Pathway Inhibitors6
  Trimotherim-sulfamethoxazole 60.9 48.2, 72.3a 53.1 40.2, 65.7a
 Tetracyclines7
  Doxycyline 46.9 34.8, 59.4a,d 35.9 24.3, 48.9c
 Phenicols
  Chloramphenicol 44.1 31.7, 57.2d 31.3 20.2, 44.1c
  1. 1Samples that were not identified to species level and were thus reported as Staphylococcus spp.
  2. 2Other species included S. equinus, S. chromogens and S. epidermidis
  3. 3Gentamycin and amikacin
  4. 4Penicillin, ampicillin, ceftriaxone
  5. 5Enrofloxacin
  6. 6Sulphamethoxazole
  7. 7Chloramphenicol
  8. a-dEstimates with different superscripts are significantly different at 5% significance level