trail

A doctor checking comatose COVID-19 patients for signs of a stroke instead stumbled onto a new clue about how the virus may harm the lungs -- thanks to a test that used tiny air bubbles and a robot.Dr. Alexandra Reynolds, a neurologist at New York’s Mount Sinai Health System, initially was baffled as she tracked…

When we talk about fighting the COVID-19 virus, we hear a lot about social distancing, self-isolation and vaccines. What's weird is that you don't hear much about another incredibly important tool in fighting epidemics: contact tracing.It means detective work. When somebody tests positive, you ask for the names of anyone they've been in contact with…