Bacteria Take a Deadly Risk to sSrvive (image) KU Leuven Share Print E-Mail Caption E.coli bacteria mutate more quickly in near-lethal concentrations of ethanol, KU Leuven research shows. Credit KU Leuven - Toon Swings Usage Restrictions Please use with appropriate caption and credit only! Share Print E-Mail 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.