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Photo taken on Dec. 1, 2017 shows a poster with red ribbon logo on the exterior wall of a government building in downtown Brussels, Belgium, on the occasion of World Aids Day. (Xinhua/Ye Pingfan)
Photo taken on Dec. 1, 2017 shows a poster with red ribbon logo on the exterior wall of a government building in downtown Brussels, Belgium, on the occasion of World Aids Day. (Xinhua/Ye Pingfan)