The linked article about Dongguan is from a Delta wave last May, and is much smaller than Shanghai unless you include the entire Pearl River Delta area (and presumably the restrictions were sufficient to prevent a full outbreak, though for Delta rather than Omicron).
The linked article about Dongguan is from a Delta wave last May, and is much smaller than Shanghai unless you include the entire Pearl River Delta area (and presumably the restrictions were sufficient to prevent a full outbreak, though for Delta rather than Omicron).