Medical workers wearing cartoon head decorations work at a vaccination site in Xuhui District of Shanghai, east China, Nov. 20, 2021.Photo:Xinhua
A four-year-old girl receives COVID-19 vaccine at a vaccination site in Xuhui District of Shanghai, east China, Nov. 20, 2021.Photo:Xinhua
A medical worker gives thumb up to a child at a vaccination site in Xuhui District of Shanghai, east China, Nov. 20, 2021.Photo:Xinhua
A five-year-old girl, accompanied by her father and brother, gets vaccinated at a vaccination site in Xuhui District of Shanghai, east China, Nov. 20, 2021.Photo:Xinhua
A medical worker wearing cartoon head decoration works at a vaccination site in Xuhui District of Shanghai, east China, Nov. 20, 2021.Photo:Xinhua