To gain more insight into the signalling event associated with C. jejuni induced colitis, IL-10wt/wt; NF-κBEGFP and IL-10−/−; NF-κBEGFP mice were colonized for 14 days and their colons dissected and EGFP expression visualized using a CCD camera in a light-tight imaging box with a dual filtered light source. The gene discussed is IL10; the disease is colitis.