A minor receives a dose of the COVID-19 vaccine at a vaccination site in a primary school in Handan, north China's Hebei Province, Aug. 4, 2021. Handan launched its vaccination drive for minors aged between 12 and 17 recently. (Photo by Hao Qunying/Xinhua)

A minor receives a dose of the COVID-19 vaccine at a vaccination site in a primary school in Handan, north China's Hebei Province, Aug. 4, 2021. Handan launched its vaccination drive for minors aged between 12 and 17 recently. (Photo by Hao Qunying/Xinhua)

A minor receives a dose of the COVID-19 vaccine at a vaccination site in a primary school in Handan, north China's Hebei Province, Aug. 4, 2021. Handan launched its vaccination drive for minors aged between 12 and 17 recently. (Photo by Hao Qunying/Xinhua)

来源：Xinhua