Authorities in Tianjin have ordered citywide Covid testing after 20 people tested positive for the virus, authorities said on Sunday.
Xinhua News Agency reported that the infections were found on Friday and Saturday in the Jinnan district and at least two of the cases involved the highly contagious Omicron variant.
The citywide nucleic acid testing was expected to be completed in 24 hours in four districts from 7am on Sunday and in 12 other districts from 7am on Monday, Xinhua said.
It added that residents would not be given a green health code until they received a negative test result.
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