A worker unloads boxes of China's SinoVac COVID-19 vaccine at Esenboga Airport in Ankara, Turkey, Dec. 30, 2020. The first batch of 3 million doses of China's SinoVac COVID-19 vaccine arrived in the Turkish capital Ankara early Wednesday. Mass vaccination will start following 14 days of tests, Turkish Health Minister Fahrettin Koca tweeted Wednesday. (Photo by Mustafa Kaya/Xinhua)
