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Percent reduction in the weekly numbers of patients with Kawasaki disease and PIDs in 2020 compared with 2017-2019. The mean and range of weekly percent reductions in the numbers of patients who developed Kawasaki disease and PIDs are compared between 2020 and 2017-2019, shown using error bars in the charts. The school closure period (weeks 10-19) is highlighted using dashed lines in all panels.
