Diagnostic Device Simulation (IMAGE) University of Washington Caption This simulation shows the pieces necessary for a field-based diagnostic test, including a swab, a smartphone and the testing device. Credit Paul Yager, U of Washington Usage Restrictions Image credit required 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.