Figure 3: Cytotoxicity of Cohex in cell lines used for in vitro Ebola virus studies. Plots of cell viability, normalized against uninfected cells with no Cohex (-/- control; % cell control). Error bars for the figures are for standard error (SE) of the mean: a) the % of viable A549 cells, as a fraction of -/- control, is plotted as a function of increasing Cohex; p < 0.05 for all concentrations (down to p = 1 x 10-6 for 5 mM); b) % viable cells for HepG2 cells as a function of Cohex concentration; *p <.05 for .63 mM and higher(down to p = 4 x 10-4 for 0.4 mM); c) % viable cells for VerE6 cells as a function of Cohex concentration; all data have p < 0.05 except at 0.1 mM Cohex. (lowest p = 1 x 10-4 for 3.5 mM) d) % viable cells for 293T cells as a function of Cohex concentration; *p < 0.05 for 0.63 mM and higher(lowest p = 4 x 10-5 for 3.5 mM).