A medical worker scans the codes of COVID-19 vaccines before storing them at a community vaccination site in Baohe District of Hefei, capital of east China's Anhui Province, May 16, 2021. The disease control and prevention center in Baohe District on Sunday delivered 56,000 COVID-19 vaccines to different vaccination sites, meeting people's need to get vaccinated after new locally transmitted cases emerged there recently. (Xinhua/Zhang Duan)
