Bolivian President Luis Arce (L) looks on as a medical worker administers a dose of Chinese Sinopharm COVID-19 vaccine to a recipient in Santa Cruz, Bolivia, Feb. 25, 2021. Bolivian President Luis Arce attended on Thursday a launching ceremony in Santa Cruz for the nation-wide campaign of COVID-19 vaccine inoculation. (Photo by Rodrigo Urzagasti/Xinhua)
