Urinary Tract Infection (IMAGE) Washington University School of Medicine Caption An immune cell known as a neutrophil (shown in light blue) attacks bacteria infecting the lining of the bladder. Scientists at Washington University School of Medicine have learned that the bacteria that cause urinary tract infections can steal copper -- a potent microbicide -- to prevent the copper from being used against them. Credit Chia Hung, Ph.D. Usage Restrictions Embargoed until 7/8/12 at 1 p.m. EDT. 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.