 mice were analyzed. Left animal, injected mouse; right animal, uninjected mouse; pseudo-color, blue (high) to red (low). *E. coli*-GFP, *Escherichia coli* MC0000 strain which expresses green fluorescent protein; CFU, colony-forming unit.](cevr-0-00-g000){#F0}  ![Visualization of *E. coli*-GFP strain in mice by 