Author: Billy J Quilty; Charlie Diamond; Yang Liu; Hamish Gibbs; Timothy W Russell; Christopher I Jarvis; Kiesha Prem; Carl A B Pearson; Samuel J Clifford; Stefan Flasche; Petra Klepac; Rosalind M Eggo; Mark Jit
Title: The effect of inter-city travel restrictions on geographical spread of COVID-19: Evidence from Wuhan, China Document date: 2020_4_21
ID: 6kiv3qi5_7
Snippet: Since late 2019, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the causative agent of Coronavirus Disease 2019 (COVID- 19) , has spread to over 114 countries and was declared a pandemic on 11 March 2020 (1) . Some countries have enacted cordon sanitaire-type travel restrictions, either to prevent the export of infections from an initial disease epicentre (such as Wuhan in January 2020 (2) or Northern Italy in March 2020 (3) ) to o.....
Document: Since late 2019, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the causative agent of Coronavirus Disease 2019 (COVID- 19) , has spread to over 114 countries and was declared a pandemic on 11 March 2020 (1) . Some countries have enacted cordon sanitaire-type travel restrictions, either to prevent the export of infections from an initial disease epicentre (such as Wuhan in January 2020 (2) or Northern Italy in March 2020 (3) ) to other countries and regions, or to prevent the import of infections from high-risk countries or regions (such as the USA's ban on travel from Europe (4)). Cordons sanitaires aim to curb the number of infected travellers entering a region with a high proportion of susceptible individuals, where they may seed additional chains of transmission. However, they are often reactive, occurring only after a significant number of transmission chains have been established. Hence, the efficacy of cordons sanitaires in averting or delaying outbreaks in other locations is an open question.
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