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A health worker gives a polio vaccine to a child during a vaccination campaign in Mazar-i-Sharif, capital of northern Balkh province, Afghanistan, Sept. 15, 2019 . (Photo by Kawa Basharat/Xinhua)
A health worker gives a polio vaccine to a child during a vaccination campaign in Mazar-i-Sharif, capital of northern Balkh province, Afghanistan, Sept. 15, 2019 . (Photo by Kawa Basharat/Xinhua)