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Table 3 Antimicrobial susceptibilities of USA300-HOU-MR and USA300-HOU-MS

From: Subtle genetic changes enhance virulence of methicillin resistant and sensitive Staphylococcus aureus

Antibiotic USA300-HOU-MR USA300-HOU-MS
  MIC Phenotype MIC Phenotype
Bacitracin >128 R 32 S
Cephalexin 128 R 4 S
Cefazolin 32 R 8 S
Cefotaxime >128 R 2 S
Ciprofloxacin 0.5 S 0.25 S
Clarithromycin 64 R <0.125 S
Clindamycin 0.06 S 0.06 S
Doxycycline <0.125 S <0.125 S
Erythromycin 64 R <0.125 S
Gentamicin 1 S 1 S
Kanamycin >128 R 4 S
Minocycline <0.125 S <0.125 S
Nourseothricin 8 S 4 S
Oxacillin 128 R 1 S
Penicillin 32 R 4 R
Rifampin <0.004 S <0.004 S
Tetracycline <0.125 S <0.125 S
Trimethoprim-Sulfamethoxazole <0.03/0.06 S 0.06/0.125 S
Vancomycin 1 S 1 S
  1. MIC, minimum inhibitory concentration, μg/ml
  2. R, resistant; S, susceptible