News Snapshot:
Hong Kong once seemed like a model for how to control the coronavirus. Schools were open. Restaurants and malls buzzed with crowds. Buses and trains operated as usual, with residents dutifully wearing face masks on board. But a new wave of infections in recent days has put the city on edge. Hospitals are now seeing more cases a day than they ever have during the pandemic. More important, health officials are unable to determine the origin of many of these cases, despite having a robust contact tracing system in place. The government reported 73 cases Monday, one of the highest...
