A woman wearing a face mask to protect against COVID-19 walks past a mural in the central business district in Beijing, Thursday, Dec. 23, 2021. China ordered the lockdown of as many as 13 million people in neighborhoods and workplaces in the northern city of Xi'an following a spike in coronavirus cases, setting off panic buying just weeks before the country hosts the Winter Olympic Games. (AP Photo/Mark Schiefelbein)

December 23, 2021