A volunteer disinfects the area as it snows during the Covid-19 lockdown in Changchun in northeast China's Jilin province Saturday, March 12, 2022. China on Friday ordered the lockdown of the 9 million residents of the northeastern city of Changchun amid a new spike in Covid-19 cases in the area attributed to the highly contagious omicron variant. (Chinatopix Via AP)(CHINATOPIX via AP)