HONG KONG—After six weeks of strict lockdown, Shanghai authorities are again tightening Covid-19 restrictions amid a renewed push by central-government officials to eradicate the virus, sparking a new wave of frustration in the coastal city of 25 million people.
Though Shanghai officials haven’t formally announced any new citywide measures, residential communities and grass-roots authorities have expanded the scope of people being taken into centralized quarantine while cutting off deliveries of nonessentials to swaths of the city, according to half a dozen Shanghai residents who have received notices and shared them with The Wall Street Journal.
