Colorized electron micrograph of probiotic Escherichia coli G3/10 and probiotic yeast Saccharomyces boulardii.

The image was prepared by Carolin Büttner, Institute of Medical Microbiology and Hygiene, Faculty of Medicine Carl Gustav Carus, TU Dresden, Dresden, Germany together with Manfred Rohde, Helmholtz Centre for Infection Research, Braunschweig, Germany.