New York City schools can reopen for in-person learning as long as coronavirus positivity rates in the city stay below 3%, Mayor Bill de Blasio has said. In Tennessee's Shelby County, which includes Memphis and neighboring suburbs, schools can open for in-person instruction as long as the positivity rate in the area stays below 25%, the county health department outlined in new guidance. In Arizona, where students began the school year virtually, the state health department published guidance for schools districts seeking to reopen in-person that recommend they maintain for two weeks a positivity rate in the district below 7%, a decline in the number of cases and a hospital admission rate due to COVID-like symptoms of 10% or less.
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