Impacts of worldwide individual non-pharmaceutical interventions on COVID-19 transmission across waves and space
Topics: Medical and Health Geography
, Health and Medical
, Geography and Urban Health
Keywords: COVID-19; Big data; Non-pharmaceutical interventions; Multi-scale; Effectiveness
Session Type: Virtual Paper Abstract
Day: Saturday
Session Start / End Time: 2/26/2022 05:20 PM (Eastern Time (US & Canada)) - 2/26/2022 06:40 PM (Eastern Time (US & Canada))
Room: Virtual 1
Authors:
yong Ge, State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China
Wen-Bin Zhang, State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China
Haiyan Liu, Marine Data Center, South Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China
Corrine W Ruktanonchai, Population Health Sciences, Virginia Tech, Blacksburg, VA, USA
Maogui Hu, State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China
Xilin Wu, State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China
Yongze Song, School of Design and the Built Environment, Curtin University, Perth, 6101, Australia
Nick W Ruktanonchai, Population Health Sciences, Virginia Tech, Blacksburg, VA, US
Wei Yan, Respiratory medicine department, Peking university third hospital, Beijing, China
Eimear Cleary, WorldPop, School of Geography and Environmental Science, University of Southampton, UK
Abstract
Governments worldwide have rapidly deployed non-pharmaceutical interventions (NPIs) to mitigate the COVID-19 pandemic. However, the effect of these individual NPI measures across space and time has yet to be sufficiently assessed, especially with the increase of policy fatigue and the urge for NPI relaxation in the vaccination era. Using the decay ratio in the suppression of COVID-19 infections and multi-source big data, we investigated the changing performance of different NPIs across waves from global and regional levels (in 133 countries) to national and subnational (in the United States of America [USA]) scales before the implementation of mass vaccination. The synergistic effectiveness of all NPIs for reducing COVID-19 infections declined along waves, from 95.4% in the first wave to 56.0% in the third wave recently at the global level and similarly from 83.3% to 58.7% at the USA national level, while it had fluctuating performance across waves on regional and subnational scales. Regardless of geographical scale, gathering restrictions and facial coverings played significant roles in epidemic mitigation before the vaccine rollout. Our findings have important implications for continued tailoring and implementation of NPI strategies, together with vaccination, to mitigate future COVID-19 waves, caused by new variants, and other emerging respiratory infectious diseases.
Impacts of worldwide individual non-pharmaceutical interventions on COVID-19 transmission across waves and space
Category
Virtual Paper Abstract
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