How Viruses Destroy C.diff (IMAGE) European Molecular Biology Laboratory Caption Proteins that demolish C.diff's cell wall -- endolysins -- are activated by switching from a tensed, stretched state (left) to a relaxed state (right). Credit EMBL/Rob Meijers Usage Restrictions Policy regarding use EMBL press and picture releases including photographs, graphics and videos are copyrighted by EMBL. They may be freely reprinted and distributed for non-commercial use via print, broadcast and electronic media, provided that proper attribution to authors, photographers and designers is made. 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.