App Users Upload Flu Symptons Via Avatars (image) DOE/Pacific Northwest National Laboratory Caption An avatar of "Courtney" displays flu-like symptoms -- sore throat, coughing and fatigue -- on the iOS app FL•U, pronounced "flu you." Developed by students at a Pacific Northwest National Laboratory competition, the app allows self-reporting users to contribute to localized breakout maps. Credit Pacific Northwest National Laboratory Usage Restrictions News use only. Credit Pacific Northwest National Laboratory (or PNNL). 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.