Determination of Disk Diffusion and MIC Quality Control Guidelines for Solithromycin, a Novel Fluoroketolide Antibacterial, against Neisseria gonorrhoeae.

This solithromycin quality control study was performed to establish quality control (QC) ranges for the N. gonorrhoeae ATCC 49226 control strain for MIC agar dilution testing (AD) and zones by disk diffusion testing (DD). The following ranges were established: AD, 0.03 to 0.25 μg/ml, and DD, 33 to 43 mm. In January 2015, the CLSI Subcommittee on Antimicrobial Susceptibility Testing approved these ranges, which will be important when evaluating solithromycin against clinical isolates of N. gonorrhoeae.