Prashant Shenoy, UMass Amherst (IMAGE) University of Massachusetts Amherst Caption UMass Amherst's Prashant Shenoy notes that contact tracing has mostly been done with manual methods and interviews. Now, he and his team offer health professionals an added source of information, from WiFi logs. Those who are ill must give permission to search those logs to trace their recent contacts. Credit UMass Amherst 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.