Could scratch-n-sniff that once helped communicate the scent of a cleaning product help curb the spread of COVID-19? A graphic communications company believes so.   Taylor Corporation, North Mankato, MN, has launched new tools for employers and consumers to help them identify loss of smell, which it contends can be a solid indicator of the novel coronavirus.   Taylor’s loss-of-scent detection tools use a patent-pending process of printing scented inks on small “scratch and sniff” cards to id...