Exercising, visiting a grocery store and ordering delivery food are frequently permitted under stay at home orders. NEW YORK - Scientists offered more evidence Wednesday that the coronavirus is spread by seemingly healthy people who show no clear symptoms, and the federal government issued new guidance warning that anyone exposed to the disease can be considered a carrier. RELATED: Asymptomatic individuals may be rapidly spreading COVID-19, according to researchers A study by researchers in Singapore became the latest to estimate that somewhere around 10% of new infections may be sparked by people who carry the virus but have not yet suffered its flu-like symptoms. RELATED: Costco to limit number of people in stores In response to that