TABLE 6.

Comparison of doubling times and vancomycin MICs among VRSA strains and their derivatives

StrainParental strainPassage-derived strainsVancomycin-resistant mutant strain
Doubling time (min)MIC (mg/liter)Doubling time (min)MIC (mg/liter)Doubling time (min)MIC (mg/liter)
Mu5027.08923.71227.299
MI36.921025.61234.357
NJ22.71718.45330.195
PC38.94826.56229.897
IL21.28714.09230.516
AMC1109428.55825.84227.366
99/3759-V24.75623.63225.226
99/3700-W28.23621.01225.655
9814126.81526.56326.936
LIM224.45517.93228.646
2816024.33524.06225.135
BR119.53918.75223.055
BR221.28918.092
BR324.61917.87325.117
BR422.53921.92330.418
BR5-126.76924.64329.788