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A baby receives an oral poliovirus vaccine during an anti-polio campaign by the Philippine Department of Health in Manila, the Philippines, Aug. 19, 2019. (Xinhua/Rouelle Umali)
A baby receives an oral poliovirus vaccine during an anti-polio campaign by the Philippine Department of Health in Manila, the Philippines, Aug. 19, 2019. (Xinhua/Rouelle Umali)