In a modelling study using data on country-specific policies on NPIs from the Oxford COVID-19 Government Response Tracker, a decreasing trend over time in the R ratio was found following the introduction of school closure was shown [ 12 ].
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In a modelling study using data on country-specific policies on NPIs from the Oxford COVID-19 Government Response Tracker, a decreasing trend over time in the R ratio was found following the introduction of school closure was shown [ 12 ].