Beijing and Shanghai have resumed mass testing for Covid-19 while a planned reopening of schools in the capital will be delayed as virus outbreaks emerge just days after the two cities eased social curbs that had been in place for months.
Beijing restarted screening in several neighbourhoods of the Chaoyang district, where many company headquarters and embassies are based, after a flareup in a bar ended a five-day streak of zero community spread.
