Hong Kong, Japan and Australia are seeing new waves of infections after relaxing Covid-19 restrictions

Australia reported only a handful of new coronavirus cases in early June, while Hong Kong went three weeks without a single locally transmitted infection that month. Japan had already lifted a state of emergency in May after the number of new cases dropped to a few dozen nationwide.
All three reported new high-water marks in daily infection numbers in the past week, showing how difficult it can be to keep the virus at bay, even in places lauded for taking early and decisive action.