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. 2020 Aug 14;40:100921. doi: 10.1016/j.eml.2020.100921

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© 2020 Elsevier Ltd. All rights reserved.

Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.

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Fig. 3 — Early outbreak control of COVID-19 in Europe. Infectious population for constrained mobility with travel restrictions versus unconstrained mobility without travel restrictions. Simulations are based on country-specific basic reproduction numbers without and with mobility. The mean basic reproduction number was 4.62 $\pm$ 1.32 [14].