Chengdu locks down 21 million people in fresh Covid outbreak

Authorities impose sweeping restrictions as China holds fast to zero-Covid policy

About 21 million people in the Chinese city of Chengdu have gone into lockdown as authorities raced to snuff out a new Covid-19 outbreak.

China is the last major economy wedded to a zero-Covid policy, stamping out virus flare-ups with snap shutdowns, mass testing and lengthy quarantines.