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Since the start of the school year, schools have seen almost 20,000 positive cases among students and staff, and that number has been increasing drastically in the last week.

Now, school and city leaders are calling on the mayor to come up with a plan to keep students and staff safe.

“We have, as of this morning, four schools closed out of 1,600, and a positivity level of just over 1%,” the mayor said, saying that’s a very small fraction of the city’s overall positivity level.

City Council Health Committee chair, and newly elected Manhattan Borough President Mark Levine, said the CDC approved “test and stay” protocol is the way to go in New York City.