(Portland, OR)  --  Oregon State University is testing out a new tool that could alert Oregonians about possible exposure to COVID-19.  Nearly five-thousand faculty, staff and students have downloaded Oregon Exposure Notifications for their smartphone.  The app uses Bluetooth technology to anonymously tell other users when someone who was near them tests positive for COVID-19, giving them information about how to get tested themselves.  The system does not collect any personal information, and doesn't track a user's location.