TABLE 1

MICs of MEM and CIP for the nonhypermutable P. aeruginosa PAO1 and hypermutable P. aeruginosa PAOΔmutS, CW8, CW35, and CW44 strains

StrainMICa (mg/liter)
MEMbCIPc
PAO10.380.064
PAOΔmutS0.500.064
CW81.54.0
CW350.503.0
CW440.500.19
  • a MICs were obtained using Etest (bioMérieux, North Ryde, Australia). MICs for PAO1 and PAOΔmutS were previously reported (36).

  • b MEM, meropenem.

  • c CIP, ciprofloxacin.