swabbed for a cokcovid test thrh the fence. megaphone is used to call for others to get tested. the country s zero covid strategy turning millions into virtual prisoners across the nation. outside of beijing, these residents held over to apartment keys so community members can lock them in from outside. crews drill holes to chain the doors shut. workers installing steel bars to keep people from leaving the building. right now across china, at least 27 cities are under full or partial lockdown. cnn s calculation estimating that directly impacts up to 180 million people. more than half the u.s. population. for over two years now, china s covid containment has become more extreme. fracturing everyday life.