Editor's note: On March 12, 2020, the World Health Organization (WHO) declared COVID-19 a pandemic, and as of Thursday (May 21), about 200 countries and regions have confirmed over 4,801,000 cases, a
02:55 Wuhan, the city at the epicenter of the COVID-19 outbreak, has seen the number of new infections declining and that of recovered patients growing steadily after more than two mon
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