Piotr Mydel, University of Bergen (IMAGE) The University of Bergen Caption For several years, Piotr Mydel has done research investigating how different bacteria are implicated in Alzheimer's disease. Credit Kim E. Andreassen Usage Restrictions None 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.