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COVID-19 infections following physical school reopening
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  1. Oren Miron1,
  2. Kun-Hsing Yu2,
  3. Rachel Wilf-Miron3,
  4. Isaac Kohane2,
  5. Nadav Davidovitch1
  1. 1Health Systems Management, Ben-Gurion University of the Negev, Beer Sheva, Israel
  2. 2Biomedical Informatics, Harvard Medical School, Boston, Massachusetts, USA
  3. 3School of Public Health, Tel Aviv University, Tel Aviv, Israel
  1. Correspondence to Mr Oren Miron, Ben-Gurion University of the Negev, Beer Sheva, Israel; orenmir{at}post.bgu.ac.il

Statistics from Altmetric.com

The USA closed most of its schools in March–April 2020, which was associated with reduced COVID-19 incidence.1 In August–September 2020, schools reopened, with many schools teaching remotely until they can safely teach physically.2

We analysed COVID-19 incidence from Florida since its database provides incidence at ages 6–13 years (elementary school) and 14–17 years (high school). We extracted incidence by county and matched it with each county’s date of school reopening. We used a 7-day moving average. We aggregated the rates by counties with physical learning and counties with remote learning (the latter were Broward, Miami-Dade and Palm Beach). We calculated time points at which the trends changed in 10 days before reopening and 20 days from reopening, using JoinPoint-Regression. Lastly, we tested if trends were different between counties teaching physically and remotely. Tests were two tailed …

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