Fig. 3: MLS resistance gene prevalence as a function of macrolide concentration.

a Azithromycin. b Clarithromycin. c Erythromycin. *Significant increase to 90% confidence in comparison to the no antibiotic control. **Significant increase to 95% confidence in comparison to the no antibiotic control. n = 3 replicates per concentration. Boxplots follow the Tukey’s representation.