Alliance for Pandemic Preparedness

August 13, 2020

The Impact of Non-Pharmaceutical Interventions on SARS-CoV-2 Transmission across 130 Countries and Territories

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  • [Preprint, not peer-reviewed] Liu et al. modeled the effectiveness of several non-pharmaceutical interventions (NPIs) in reducing SARS-CoV-2 transmission using publicly available data from 178 countries during January 1 – June 22, 2020. They reported 2 NPIs (school closure and internal movement restrictions) were significantly effective and that their effectiveness increased with greater intensity of the intervention. Three NPIs (workplace closure, income support, and debt/contract relief) were effective, but their effectiveness did not increase with greater intensity, and 2 NPIs (public events cancellation, restriction on gatherings) were effective only at their maximum intensity (i.e., restricting gathers of 10 people or more).  

Liu et al. (Aug 12, 2020). The Impact of Non-Pharmaceutical Interventions on SARS-CoV-2 Transmission across 130 Countries and Territories. Pre-print downloaded Aug 13 from https://doi.org/10.1101/2020.08.11.20172643