Brain (IMAGE) Arizona State University Caption Could viruses, bacteria or other infectious pathogens play a role in the onset or progression of Alzheimer's disease? A new Viewpoint article discusses the possibilities. Credit Graphic by Shireen Dooling for the Biodesign Institute at Arizona State University 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.