Labs See Test Delay Risk; U.S. Governors on Edge: Virus Update

Chicago Mayor Lori Lightfoot urged residents to stay home as much as possible, calling it “literally a matter of life or death.” New York Mayor Bill de Blasio is preparing for possibility of closing city schools again, while the state reported more than 10,000 new cases in two days.

As U.S. states become the first line of defense against the pandemic, disunity between the governors of Minnesota and South Dakota offered a hint that coordinated action may be a challenge. A trade group representing diagnostic laboratories said there’s a risk of longer wait times for Covid-19 test results.