<em>Campylobacter</em> Infect Human Cells (IMAGE) University of Würzburg Caption This fluorescence microscopy image shows Campylobacter jejuni bacteria (green) that have infected human cells (HeLa). The nuclei of host cells are stained in blue and the cytoskeleton (actin) in magenta, respectively. Credit (Image: Mona Alzheimer / University of Würzburg) Usage Restrictions None License Licensed 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.