Coronavirus latest: Australia unveils plans to limit arrivals into the country Financial Times'Silent spreaders' may be responsible for half of Covid-19 cases, study finds CNN'Silent spreaders' may be responsible for half of COVID-19 cases WLWT CincinnatiStudy: ‘Silent’ Transmission the Top Driver of COVID Outbreaks U.S. News & World ReportStudy: Asymptomatic COVID-19 patients responsible for half the country's cases News 12 Long IslandView Full Coverage on Google News