Pandemic E. coli Electron Micrograph (image) University of Washington Health Sciences/UW Medicine Share Print E-Mail Caption This is an electron micrograph of the H30 pandemic strain E. coli. It is often a urinary tract pathogen, but also can infect the blood stream and other areas. Credit Dagmara Kisiela /University of Washington Usage Restrictions None 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.