FILE PHOTO: Residents line up outside a pharmacy to buy antigen testing kits for the coronavirus disease (COVID-19), in Nanjing, Jiangsu province, China December 15, 2022. China Daily via REUTERS/File Photo
FILE PHOTO: Residents line up outside a pharmacy to buy antigen testing kits for the coronavirus disease (COVID-19), in Nanjing, Jiangsu province, China December 15, 2022. China Daily via REUTERS/File Photo