About: Estimating the impact of physical distancing measures in containing COVID-19: an empirical analysis

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Attributes	Values
type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
has title	Estimating the impact of physical distancing measures in containing COVID-19: an empirical analysis
Creator	Koh, Koh, Chian Wee, Chian Wee, Dr Wong, Justin
Source	MedRxiv
abstract	Background Epidemic modelling studies predict that physical distancing is critical in containing COVID-19. However, few empirical studies have validated this finding. Our study evaluates the effectiveness of different physical distancing measures in controlling viral transmission. Methods We identified three distinct physical distancing measures with varying intensity and implemented at different times - international travel controls, restrictions on mass gatherings, and lockdown-type measures - based on the Oxford COVID-19 Government Response Tracker. We also estimated the time-varying reproduction number (Rt) for 142 countries and tracked Rt temporally for two weeks following the 100th reported case in each country. We regressed Rt on the physical distancing measures and other control variables (income, population density, age structure, and temperature) and performed several robustness checks to validate our findings. Findings Complete travel bans and all forms of lockdown-type measures have been effective in reducing average Rt over the 14 days following the 100th case. Recommended stay-at-home advisories and partial lockdowns are as effective as complete lockdowns in outbreak control. However, these measures have to be implemented early to be effective. Lockdown-type measures should be instituted two weeks before the 100th case and travel bans about a week before detection of the first case. Interpretation A combination of physical distancing measures, if implemented early, can be effective in containing COVID-19 - tight border controls to limit importation of cases, encouraging physical distancing, moderately stringent measures such as working from home, and a full lockdown in the case of a probable uncontrolled outbreak.
has issue date	2020-06-12(xsd:dateTime)
bibo:doi	10.1101/2020.06.11.20128074
has license	medrxiv
sha1sum (hex)	8a985bcf95e1ce81215c88d9b7ffcd204ca07d12
schema:url	https://doi.org/10.1101/2020.06.11.20128074
resource representing a document's title	Estimating the impact of physical distancing measures in containing COVID-19: an empirical analysis
resource representing a document's body	covid:8a985bcf95e1ce81215c88d9b7ffcd204ca07d12#body_text
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