FIG 7.
Effect of B. cereus ATCC 14579 supernatant (Bc-SN) on Vero cell viability in the presence or absence of B. clausii O/C purified protease (OC-protease). Bars represent the percentage of cell attachment of cells coincubated with Bc-SN, OC-protease, or Bc-SN/OC-protease with or without protease inhibitors (PMSF and EDTA). The percentage of cell attachment was calculated as 100 × (A/Ac), where A is the absorbance of treated cells and Ac is the absorbance of untreated control cells. Results were averages ± SD from 4 independent assays. **, significant differences from the corresponding control (P < 0.01); ϕ, significant differences from the Bc-SN condition (P < 0.01).