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On Jan 20, renowned Chinese respiratory expert Zhong Nanshan said the novel coronavirus in Wuhan, Hubei province, can spread from human to human and some medical workers there were infected with the virus.

On Jan 23, when Wuhan, Hubei province, the Chinese city hardest-hit by COVID-19, was locked down to stem the spread of the virus, Peking Union Medical College Hospital issued an open letter to solicit its medical workers to go to Wuhan to provide assistance to local hospitals. In just 18 hours, 3,306 people applied.

On Monday, the Trump administration unveiled sweeping changes to the asylum rules, the latest attempt to restrict the influx of migrant families coming to the United States.

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On March 27, experts from Guizhou held an internet conference on the experience of disease control from the Guizhou Provincial People's Hospital with experts from Morocco, which recorded its first COVID-19 case on March 2.

On Saturday afternoon, the Beijing Meteorological Service had issued a blue alert for cold. Over the weekend temperatures fell to -3 C with highs of 11 C. Temperatures are expected to plunge to -5 C on Monday night.

On Monday, Trump tweeted that "IRAN WILL NEVER HAVE A NUCLEAR WEAPON!"

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On Thursday, China's Ministry of Ecology and Environment said that the air pollution campaign had reached a "stalemate".

On May 12, 2008, an 8.0-magnitude earthquake damaged Sichuan's Wolong Panda Reserve. Most of its pandas and staff were transferred to another facility in Ya'an, 140 kilometers from provincial capital Chengdu.

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On Thursday night, the Dalianwan area, which has three villages and 17 communities, was named a medium-risk area, together with another community－Gongrencun community of Xianglujiao in the city's Xigang district. Residential communities there have been temporarily shut down.

On Sunday, Yi met with US Treasury Secretary Steven Mnuchin on the sidelines of the meeting. They exchanged views on the global economic and financial situation, as well as G20 issues, said a statement on the central bank's website.