Salk Researcher (IMAGE) Salk Institute Caption Salk Assistant Professor Janelle Ayres and collaborators reported finding a strain of micro biome Escherichia coli bacteria in mice capable of improving the animals' tolerance to infections of the lungs and intestines by preventing wasting. Credit Salk Institute Usage Restrictions with credit and related coverage 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.