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. 2020 Sep 8;7:100212. doi: 10.1016/j.trip.2020.100212

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© 2020 The Author(s)

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. 1 — Number of infected cases in Japan and Hokkaido by day.

(Source: Japan – Ministry of Health, Labor and Welfare (https://www.mhlw.go.jp/english/index.html) and Japan COVID-19 Coronavirus Tracker (https://github.com/reustle/covid19japan-data); Hokkaido – Hokkaido Government (http://www.pref.hokkaido.lg.jp/index.htm)).