Coronavirus: Infected people without symptoms are driving epidemic’s fast spread

People with mild or no symptoms of COVID-19 are the main drivers behind the spread of the coronavirus epidemic, according to an important new analysis of China’s outbreak released on Monday.
These so-called “stealth” transmissions underscore the importance of “social distancing” measures that are now being enacted in communities across the U.S. and Europe, the researchers said. Unrecognized infections can expose a far greater portion of the population to virus than