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From Chain Reaction to Grid Reaction: Mobilities and Restrictions During the Epidemics of SARS and COVID-19

Epidemics are closely related to population mobility. But the COVID-19 outbreak is special in that population mobility in China 2020 is not only unprecedentedly prevalent and frequent, but has also become a basis of the global economy and many people‚Äôs livelihood. The circulation of goods and the movement of people are arguably more important than the assembly lines in factories …

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