TABLE 4.

Susceptibilities of C. jejuni 81-176, JL107, and CR3e to different antimicrobials

AntimicrobialMIC (μg/ml)a
81-176JL107CR3e
Ciprofloxacin0.3900.780 (2)100 (256)
Norfloxacin0.0980.196 (2)6.25 (64)
Tetracycline0.0980.098 (−)0.196 (2)
Ampicillin0.6250.625 (−)2.5 (4)
Cefotaxime0.3900.780 (2)1.56 (4)
Erythromycin0.0390.156 (4)0.156 (4)
Ethidium bromide0.6250.625 (−)0.625 (−)
Fusidic acid3978 (2)78 (2)
Cholic acid3,1253,125 (−)3,125 (−)
Choleate12,50012,500 (−)25,000 (2)
SDS156156 (−)156 (−)
  • a The numbers in parentheses indicate the fold differences in MICs between 81-176 and its mutant derivatives. −, no MIC difference was observed.