The Power of the Breath

One new trick a dog can learn is how to smell COVID-19. But although studies show they can accurately detect coronavirus infections, training enough canines to recognize the scent will take a long time to scale up. Cristina Davis, a professor of mechanical and aerospace engineering and associate dean of research for the UC Davis College of Engineering, has a faster tool set to enter the industry by the end of 2022: a breathalyzer-like device to detect COVID-19 and its severity in individuals.