Shanghai's chaotic Covid lockdown puts other Chinese cities on edge

As Shanghai's Covid-19 lockdown leaves residents struggling to access food or medical care, citizens elsewhere in China fear similar measures are heading their way -- even as officials try to assure them they are well prepared.

In the southern port city of Guangzhou, where all 18 million residents faced mandatory testing after a handful of infections were found last week, officials stressed that food and other supplies were well taken care of -- despite one local paper reporting shortages at supermarkets due to "panic buying."