A statue of Thomas Jefferson stands in front of the Rotunda at the University of Virginia on graduation weekend at the school Saturday May 16, 2020, in Charlottesville, Va. (AP Photo/Steve Helber)VIRGINIA – A group of scientists at UVA is launching a new app that shows you the likelihood that someone at an event is unknowingly contagious with COVID-19. The data shows your likelihood based off of location and the number of people. “We put this app together with the idea that you select of a location, a county in this case, and then there’s a display that shows the likelihood that someone at that event is likely contagious, based on the number of people at that event,” said Michael Porter, a UVA data scientist. Researchers behind the app say it is not foolproof, but the numbers show a best guess. It also does not reflect the people who have been vaccinated or may have immunity.