TABLE 1

Susceptibility of rifampin and derivatives against M. abscessus

StrainbMedian MIC (mg/liter)a
RifampinRifamycin SVRifapentineRifabutin
ATCC 19977>10025506.3
Strain 1>100501006.3
Strain 2>100501006.3
Strain 3>100501006.3
Strain 4>10025506.3
Strain 5>100251006.3
Strain 6>10050>1006.3
  • a Values are the medians of three experiments.

  • b All strains had rough colonial phenotypes.