A nurse hands out a red ribbon to a woman, to mark World AIDS Day, at the entrance of Emilio Ribas Hospital, in Sao Paulo December 1, 2014.

A nurse hands out a red ribbon to a woman, to mark World AIDS Day, at the entrance of Emilio Ribas Hospital, in Sao Paulo December 1, 2014.

Credit:

Nacho Doce/Reuters

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