China imposes lockdowns on 27 cities, affecting up to 165 million people

China has introduced lockdown measures in its two biggest cities, Beijing and Shanghai — the twin engines that power much of the nation’s economy — in an uncompromising bid to stamp out Covid-19 outbreaks.China has introduced lockdown measures in its two biggest cities, Beijing and Shanghai — the twin engines that power much of the nation’s economy — in an uncompromising bid to stamp out Covid-19 outbreaks.