Hundreds of thousands of U.S. students and staff will face a new ritual as they return to school after the holiday spike in Covid-19 infections: ramped up testing.
In Washington, D.C., all students and staff must provide proof they are Covid-negative before re-entering schools on Jan. 5. In Chicago, the public schools are hustling to process more than 37,000 tests before the return to classes on Monday -- the flood is so great that delivery boxes in some areas were overflowing.
