The Lost Month: How a Failure to Test Blinded the U.S. to Covid-19

The Lost Month: How a Failure to Test Blinded the U.S. to Covid-19

By MICHAEL D. SHEAR, ABBY GOODNOUGH, SHEILA KAPLAN, SHERI FINK, KATIE THOMAS and NOAH WEILAND

Aggressive screening might have helped contain the coronavirus in the United States. But technical flaws, regulatory hurdles and lapses in leadership let it spread undetected for weeks.