Alliance for Pandemic Preparedness

April 21, 2020

The estimated impact of non-pharmaceutical interventions on documented cases of COVID-19: A cross-country analysis

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  • The authors provide estimates on the effectiveness of various non-pharmaceutical interventions based on early estimates from 20 countries, including the US.   
  • Closure of venues was associated with a 33% reduction in new cases (95% CI: 16-47%), bands on non-essential business with a 28% reduction (10-42%), border closures with a 26% reduction (13-37%), and school closures only 11% (0-27%). These findings are relevant for evaluating current containment policies.

Banholzer et al. (April 21, 2020). The estimated impact of non-pharmaceutical interventions on documented cases of COVID-19: A cross-country analysis. Pre-print downloaded Apr 21 from https://doi.org/10.1101/2020.04.16.20062141