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Table 2 Distribution of MIC's to several antibiotics among S. epidermidis isolated from mastitis and healthy women

From: Staphylococcus epidermidis strains isolated from breast milk of women suffering infectious mastitis: potential virulence traits and resistance to antibiotics

    Percentage of strains for which the MIC (μg mL-1) was as follows:
Antibiotics Breast milk N° of strains ≤ 0.03 0.12 0.25 0.5 1 2 4 8 > 8  
PEN H 36 17 8   8 14 14 8 11 19  
  M 40 10 5 5 8 10 33 8 8 18  
AMP     ≤ 0.12 0.25 0.5 1 2 4 8 100 > 100
  H 36   19 6 17 22 8 8 6 14  
  M 40   15 8 5 23 20 10 5 13 3
OXA      ≤ 0.25 0.5 1 2 > 2    
  H 36    11 31 11 8 39    
  M 40    5 8 13 8 68    
CIP      ≤ 0.25 0.5 1 2 > 2    
  H 36    47 39 8   6    
  M 40    30 38 18 3 13    
CHL           ≤ 8 16 > 16
  H 36         75 17 8
  M 40         78 10 13
ERY      ≤ 0.25 0.5 1 2 4 > 4   
  H 36    39 14 6 8   33   
  M 40    23 15    3 60   
CLI       ≤ 0.5 1 2 > 2    
  H 36     81 8 3 8    
  M 40     70 3   28    
TET          ≤ 4 8 > 8  
  H 36        56 19 25  
  M 40        68 8 25  
VAN       ≤ 0.5 1 2 4 8 16 ≥ 16
  H 36      44 50 6    
  M 40      43 48 5 3 3  
MUP          ≤ 4 256 > 256  
  H 36        78 11 11  
  M 40        58 13 30  
  1. H: strains isolated from healthy women; M: strains isolated from mastitis-suffering women; PEN: penicillin; AMP: ampicillin; OXA: oxacillin; CIP: ciprofloxacin; CHL: chloramphenicol; ERY: erythromycin; CLI: clindamycin; TET: tetracycline; VAN: vancomycin; MUP: mupirocin.
  2. Statistically-significant differences between isolates from mastitis and healthy women are in bold.