An aerial view shows a construction site of a new makeshift COVID-19 hospital and isolation facilities, in Tsing Yi of Hong Kong, Saturday, Feb. 26, 2022. For two years, Hong Kong successfully insulated most of its residents from COVID-19 and often went months without a single locally spread case. Then the omicron variant showed up. The fast-spreading mutation breached Hong Kong’s defenses and has been spreading rapidly through one of the world’s most densely populated places. (AP Photo/Kin Cheung)
