Shanghai further tightens Covid restrictions after weeks of strict lockdown

China vows to eradicate virus, neighbourhood by neighbourhood, amid frustration among residents

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Authorities in Shanghai have further tightened restrictions on the movement of residents in some districts and warned its 25 million inhabitants that strict measures would continue until Covid-19 was eradicated, neighbourhood by neighbourhood.

After three weeks of stringent lockdown that has fuelled discontent in China's largest metropolis, some districts were told that restrictions would be tightened even when they met the criteria for people to be allowed to leave their homes.