How do you catch or spread the coronavirus? Much has been said about keeping six feet away and avoiding someone’s cough or sneeze. That’s fine, but additional evidence is surfacing about how the virus is transmitted, a key question for reopening decisions. Studies drawn from completed contact tracing — tracking down all those an infected person came into contact with — are showing that sustained, close contacts and close quarters are the biggest risks.
Dr. Muge Cevik, a scientist at the School of Medicine, University of St. Andrews, who examined a series of contact…
