New York City’s entire public school system will shutter on Thursday, Chancellor Richard A. Carranza wrote in an email to school principals, in a worrisome signal that a second wave of the coronavirus has arrived. Schools have been open for in-person instruction for just under eight weeks.
The shutdown — which was prompted by the city reaching a 3 percent test positivity rate over a seven-day rolling average — is perhaps the most significant setback for New York’s recovery since the spring, when the city was a global epicenter of the outbreak.