Coronavirus May 27, 2020 5:43 am Researchers Develop COVID Smell Test Up to 400 patients from Boston area hospitals will smell a scented card and answer a series of questions on an app to detect early stages of the coronavirus in a clinical trial. US & World Videos 1:29 Sumner Tunnel in Boston to close for one month 2:17 Testimony underway in Karen Read murder trial 2:03 Mass. school officials threaten to suspend student protesters 2:13 Karen Read trial Day 6: Witness testimony resumes 4:02 ‘To Catch a Contractor' series leading to changes
