How SARS-CoV-2 causes disease and death in covid-19

There are direct routes and indirect ones

“... there are other facets to the disease not so easily understood. It robs some of the infected of their sense of smell; in others the toes or fingers darken as if bruised. Hearts swell; blood clots; immune systems cripple organs they are meant to be saving. Doctors around the world are trying to find out...