Health workers arrive with a cooler containing doses of the Sinovac vaccine at a home in the Kalunga Vao de Almas community, a rural area on the outskirts of Cavalcante, Goias state, Brazil, on March 15, 2021. Kalunga Vao de Almas is a traditional community of Black people descended from slaves. (AP Photo/Eraldo Peres)

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