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. 2022 Feb 23;12:3044. doi: 10.1038/s41598-022-07043-4

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SARS-CoV-2 Infection over Time. The proportion (right) and total number (left) of infections over time in days . Trajectories are simulated for four classes for the full versus half-sized scenarios and not vaccinated versus teacher-vaccinated scenarios. The red curves and grey areas represent the mean and standard deviation of the proportion/total number of infections for all observations, respectively. $ρ$ ’s in each legend represent the classroom densities in the unit of people per $m^{2}$ .