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BEIJING, April 13 (Xinhua) -- Chinese authorities on Monday demanded officials strengthen the nucleic acid testing of travelers leaving Wuhan, the hardest-hit city in the COVID-19 outbreak in the country.

The demand was made at a meeting of the leading group of China's COVID-19 epidemic response, which urged the expansion of testing and better management of travelers' health conditions.

Those who are set to work as teachers, medical workers or service providers at public places after leaving Wuhan should all undergo nucleic acid testing, noted the meeting.