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The temporal association of introducing and lifting non-pharmaceutical interventions with the time-varying reproduction number (R) of SARS-CoV-2: a modelling study across 131 countries – The Lancet Infectious Diseases

‘Study of effect of imposing and lifting COVID-19 measures in 131 countries. Reopening schools was associated with a 24% increase in the reproduction number (R) after 28 days. This was the second-largest increase, after lifting bans of gatherings (25%).’

(tags: covid-19 modelling epidemiology pandemics npis schools)