Quantification of cytosolic <i>Salmonella</i> in different epithelial cell lines.

<p>Cells were infected with wild type bacteria (CHQ resistance assay) or mCherry wild type bacteria (digitonin permeabilization). The percentage of cytosolic bacteria in the total population was quantified by these two assays at the indicated times. Data are mean ± SD from at least three independent experiments. N.D., not determined.