Inoculation of single-dose COVID-19 vaccine underway in Beijing
2021-05-21 08:56:00
A medical worker takes out the recombinant COVID-19 vaccine (adenovirus type 5 vector) which requires only one shot from a cooler at a temporary vaccination site in Haidian District of Beijing, capital of China, May 20, 2021. (Xinhua/Ren Chao)