C. diff bacteria contain iron particles (IMAGE) Vanderbilt University Medical Center Caption A C. diff bacterium (green) with iron particles in red, shown in a reconstructed electron tomogram from STEM-EDS. Credit James McBride/Vanderbilt University Usage Restrictions Credit James McBride/Vanderbilt University License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.