Figure 2.
Ciprofloxacin resistance profile of sinus and lower airways isolates of patient B34. The MIC of ciprofloxacin for patient B34 isolates was determined by E-test. Isolates are grouped into morphotype lineages with B34-1_A as a model ancestor. An increase in resistance was observed for the mucoid isolates, of which B34-sin_M has the highest level of resistance. The B morphotype and SCV found in the left side of the sinuses had increased resistance to the same level as the previously isolated identical morphotypes from lower airways. Patient isolates obtained after sinus surgery are not included. At least two replicate experiments were performed for each strain.