TABLE 2.

Distribution of isolates according to MBC/MIC ratio for daptomycin and vancomycin

MBC/MIC ratioNo. of isolates (%)
DaptomycinVancomycin
MRSA-WThVISAVISAMRSA-WThVISAVISA
180 (78.4)69 (78.4)12 (70.6)42 (41.2)11 (12.5)
222 (21.6)19 (21.6)5 (29.4)19 (18.6)5 (5.7)
412 (11.8)4 (4.5)
814 (13.7)7 (8.0)
≥1615 (14.7)a61 (69.3)a17 (100.0)a
  • a All isolates had vancomycin MBCs of >16 μg/ml.