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"During our stay, it became clear that work to contain the coronavirus in Nur-Sultan, where a quarantine is being observed, is being well done," said Lu Xiaobo, an infectious diseases doctor.

"Doing meaningful things makes me feel valued and positive and I would like to dedicate myself to this career," she said.

"Epidemic control in Wuhan is facing uncertainties and complex challenges due to causes such as changes in the international epidemic situation and reopening to the outside world," Hu Shuguang, deputy head of Wuhan's epidemic control headquarters, said on Tuesday.

"Even now, the gas supply is unstable and we experience frequent outages. Before, we could fire up our coal boiler any time we wanted. But with an unstable gas supply, we're just not sure if the new boiler can keep the house warm every day."

"Data barriers between different government departments have been broken down," said Li Wei, director of Haidian's urban service management command center. "We've brought together six departments onto our platform for slag truck management, including departments of transportation, urban construction and public security, as well as ecology and environment."