TABLE 1.

Clarithromycin, erythromycin, and telithromycin susceptibilities of E. coli strainsa

E. coli strainInhibitor concn (μg/ml)MIC (μg/ml)
ClarithromycinErythromycinTelithromycin
BW5104025651264
26.3110.25
BW5104 acrAB0646416
26.30.50.50.125
BW5104 acrAB tolC08816
26.30.1250.1250.06
  • a The MICs were determined for strains in Mueller-Hinton broth in the absence or presence of PAβN as previously described (4). The values shown are means of three independent determinations.