A passenger receives body-temperature checking at the Machang metro station in Changsha, central China's Hunan Province, Aug. 2, 2021.
Airport workers unload the China-donated COVID-19 vaccine and medical supplies at the El Aouina Airport in Tunis, Tunisia, on Aug. 2, 2021.
Residents register before getting inoculated against the COVID-19 virus at a vaccination site in a stadium in Nanjing, capital of east China's Jiangsu Province, Aug. 2, 2021.
A medical worker takes a swab sample from a child for nucleic acid test in Zhengzhou, central China's Henan Province, Aug. 2, 2021.
