3/3 © Reuters. FILE PHOTO: Signs hang to remind children of precautions to prevent the spread of the coronavirus disease (COVID-19) in the classroom at South Boston Catholic Academy in Boston, Massachusetts, U.S., January 28, 2021. REUTERS/Allison Dinner/File Photo 2/3
By Joseph Ax and Lisa Shumaker
(Reuters) – Thousands of U.S. schools delayed this week’s scheduled return to classrooms following the holiday break or switched to remote learning as the Omicron variant of the coronavirus pushed COVID-19 cases to record levels.
In other school districts, officials pressed on with plans to reopen, including in hard-hit New York City, where one of every three COVID-19 tests over the last week was positive for the virus, according to city data released on Monday.
Nationwide, the country is averaging 18% of tests coming…