Figure 4.
Impact of hydroxychloroquine on C. burnetii growth at different pH. In (a), C. burnetii were exposed to the indicated concentrations of hydroxychloroquine and no effect on growth was observed. In (b), hydroxychloroquine was added at 10 μg/ml to all of the cultures and doxycycline was titrated. The ratios of the means of genomes at day 7 to the means of genomes at the beginning of the culture were calculated to determine fold change in genomic equivalents. The standard errors of the means of genome equivalents were calculated and used to determine the upper and lower bounds of the ratios (fold change). The error bars depict the upper and lower bounds of fold change for each condition.