TABLE 1.

Susceptibility testing results using standard and high inocula

AntimicrobialaMIC (μg/ml) forb:
MSSA 1199MRSA 494
Daptomycin0.25 (8)0.25 (8)
Daptomycin with albumin0.5 (8)1 (16)
Nafcillin0.5 (2)>32
Nafcillin with albumin2 (16)>32
Linezolid2 (2)2 (2)
Linezolid with albumin2 (2)2 (2)
Vancomycin1 (4)0.5 (2)
Vancomycin with albumin4 (8)2 (4)
Gentamicin0.5 (0.5)0.5 (2)
Gentamicin with albumin0.5 (1)2 (4)
  • a For antimicrobials with albumin, albumin was added to broth at 4 g/dl.

  • b The standard inoculum was 5×105 CFU/g, and the high inoculum was 5×109 CFU/g. Data for the high inoculum are presented parenthetically.