Fig. 4

Confical laser micrographs of human microbiota (red) grown on the Calgary Biofilm Device and then incubated with human intestinal epithelial cells (green). Biofilm bacteria dispersed from microbiota of donors with Crohn’s Disease readily translocate (arrows) across the monolayers (b) whereas bacteria from microbiota of healthy donors do not (a). Bars = 20 μm)