Credit: A Virginia Tech student runs past a memorial for the 2007 shooting victims after school officials declared the campus safe from an earlier shooting on Thursday, Dec. 8, 2011, in Blacksburg, Va. A gunman walked into a parking lot and killed a Virginia Tech police officer who was conducting a traffic stop on campus Thursday, state police said. Another person died of a gunshot wound in a different parking lot. (AP Photo/Steve Helber)
COVID-19 screening tool is part of new app rolling out at Virginia Tech
