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Health workers wait in line to receive Sinovac COVID-19 vaccine from China during a mass vaccination program with health workers as a main priority group in Surabaya, Indonesia, Jan. 31, 2021. (Photo by Kurniawan/Xinhua)
Health workers wait in line to receive Sinovac COVID-19 vaccine from China during a mass vaccination program with health workers as a main priority group in Surabaya, Indonesia, Jan. 31, 2021. (Photo by Kurniawan/Xinhua)