Residents wait in line at a makeshift Covid-19 testing station outside a residential building at the Kwai Chung Estate public housing complex in Hong Kong, China, on Saturday, Jan. 22, 2022. The unprecedented step to place buildings at the public housing complex under lockdown is one of the most drastic measures Hong Kong has launched as it works to eradicate the virus within its borders. Photographer: Chan Long Hei/Bloomberg via Getty Images
