News: What's scariest part of the sly coronavirus? Asymptomatic & presymptomatic carriers-22-07-2020

https://economictimes.indiatimes.com/magazines/panache/whats-scariest-part-of-the-sly-coronavirus-asymptomatic-presymptomatic-carriers/articleshow/77104111.cms

WASHINGTON: One of the great mysteries of the coronavirus is how quickly it rocketed around the world. It rst ared in central China and, within three months, was on every continent but Antarctica, shutting down daily life for millions. Behind the rapid spread was something that initially caught scientists o guard, baled health authorities and undermined early containment eorts - the virus could be spread by seemingly healthy people. As workers return to oices, children prepare to return to schools and those desperate for normalcy again visit malls and restaurants, the emerging science points to a menacing reality: If people who appear healthy can transmit the illness, it may be impossible to contain. "It can be a killer and then 40 percent of people don't even know they have it," said Dr. Eric Topol, head of Scripps