Hong Kong fourth wave: one unlinked coronavirus case in residential block, two of any kind in workplace to spark mandatory tests as city toughens approach

Key pointsOfficials aim to cut down the number of new infections by Lunar New Year under a more aggressive testing approach, so Hong Kong may see at least one lockdown a dayCompulsory testing for residential blocks with a single untraceable case and workplaces with two cases or more; same for places with sewage samples containing virus tracesCompulsory testing for close contacts of infected household membersFace-to-face classes will be increased but only half-day learning at schools at…

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