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A batch of Sinovac vaccine donated by China is seen at the Gnassingbe Eyadema International Airport in Lome, Togo, Aug. 20, 2021. Togo has received the second batch of Sinovac vaccines donated by China, as part of the cooperation between the two countries to fight against the upsurge of COVID-19 cases. (Photo by Tian Yun/Xinhua)