Table 2.

Individual antibiotic susceptibilities of 11 B. burgdorferi isolates to 15 quinolones and ceftriaxonea

IsolateMIC (μg/ml) for antibiotic:
Nalidixic acidNorfloxacinPefloxacinFleroxacinOfloxacinCiprofloxacinLevofloxacinSparfloxacinGrepafloxacinGatifloxacinTrovafloxacinMoxifloxacinClinafloxacinSitafloxacinGemifloxacinCeftriaxone
B. burgdorferi sensu stricto
 B31256816>164120.500.250.500.5010.500.250.060.03
 LW2256816>168241120.12210.500.120.03
 PKa-I2568161681210.250.500.5010.500.250.120.015
B. garinii
 PTrob256432>1681440.250.500.5010.500.500.060.03
 G1256416>164120.250.500.500.500.500.500.250.06<0.015
 PSth25628820.5010.500.120.250.500.500.500.120.060.015
B. afzelii
 EB1256416>164120.500.500.501110.250.120.03
 FEM112828820.5010.500.250.250.2510.250.500.060.03
 PKo128241620.5020.250.250.500.500.500.500.250.060.03
B. valaisianaVS116512832>168240.500.5010.50210.250.120.03
B. bissettii25015256832168120.500.250.50110.500.500.060.03
  • a Antimicrobial susceptibilities were determined on three different days, and MICs for each isolate were reported as the median of three experiments.