Figure 1From: Characterization of the quinolone resistant determining regions in clinical isolates of pneumococci collected in CanadaDistribution of ciprofloxacin MICs in S. pneumoniae isolates with a parC only amino acid substitutions. The figure shows that pneumococcal isolates with substitution at either position 79 or 83 of parC have four-fold increased ciprofloxacin MIC compared to isolates with no mutations in parC. On the other hand, substitution at position 137 of parC does not appear to increase ciprofloxacin MIC.Back to article page