Spread of coronavirus in U.S. could close schools, shut down public gatherings, force people to work remotely

Quoted: Ajay K. Sethi, associate professor of Population Health Sciences at the University of Wisconsin-Madison, was more certain about the possibility.

“Right now there has been confirmed asymptomatic transmission,” he said. “We just don’t know how much of the spread is being driven by people who are asymptomatic.”