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. 2021 Sep 7;29(6):8694–8704. doi: 10.1007/s11356-021-16250-x

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© The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2021

This article is made available via the PMC Open Access Subset for unrestricted research re-use and secondary analysis in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the World Health Organization (WHO) declaration of COVID-19 as a global pandemic.

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Fig. 1 — The cumulative confirmed cases and deaths of COVID-19, tests per 1,000,000 population, and case fatality rate distribution by regime type. The x-axis represents the four types of regimes in the order of “Authoritarian Regime,” “Hybrid Regime,” “Flawed Democracy,” and “Full Democracy.” Y-axis units are displayed in parentheses. a y-axis indicates the cumulative confirmed cases per 1,000,000 population. b y-axis indicates the cumulative deaths per 10,000 population. c y-axis indicates the tests per 1,000,000 population. d y-axis indicates the case fatality rate (%)