TABLE 1

Characteristics and MICs of bacterial strains used in this study

StrainSerotypeSTDeletion site in acrRMIC (μg/ml)a
CLRCLR + CCCPAZMAZM + CCCPEB
0.75 μg/ml CCCP1.5 μg/ml CCCP0.75 μg/ml CCCP1.5 μg/ml CCCP
2012-42NTb156Nucleotide 141c32164841≥16
2011-70NT156Nucleotide 141c32161410.258
RdNT47Nonec840.2510.5≤0.061
Rd42acrNT47Nucleotide 141c32162840.58
Rd70acrNT47Nucleotide 14132161420.134
  • a CLR, clarithromycin; AZM, azithromycin; EB, ethidium bromide; CCCP, carbonyl cyanide m-chlorophenylhydrazone.

  • b NT, nontypeable.

  • c Results of a previous study by Seyama et al. (5).