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A woman receives a dose of COVID-19 vaccine at the inauguration of a mobile vaccination center near Bucharest, Romania, April 21, 2021. (Photo by Cristian Cristel/Xinhua)
A woman receives a dose of COVID-19 vaccine at the inauguration of a mobile vaccination center near Bucharest, Romania, April 21, 2021. (Photo by Cristian Cristel/Xinhua)