A giant red ribbon is hung on the front of the White House on World Aids Day, on December 1, 2014. MANDEL NGAN/AFP/AFP/Getty Images
AIDS activists light a group of candles placed in the shape of a red ribbon during an event marking World AIDS Day in Manila on December 1, 2012. TED ALJIBE/AFP/Getty Images
Balloons are released next to a sea of candles at the World Aids Day memorial in Berlin on November 30, 2011.
Volunteers from Red Cross China take part in an AIDS-awareness event on World AIDS Day in Beijing, December 1, 2009. AFP/Getty Images/file
A group of Chinese men gather to collect the free condoms distributed to mark the World's AIDS Day in Fujian province on December 1, 2010. AFP/Getty Images
Indian villagers hold oil lamps as they surround a huge AIDS symbol on the beach at Nalsarovar, some 60 km from Ahmedabad, on November 30, 2009 the eve of World Aids Day. STR/AFP/Getty Images
HIV positive women make red ribbons, the universal symbol of awareness and support for those living with HIV, at a support center in Bangalore on the eve of World AIDS Day on November 30, 2012. Manjunath Kiran/AFP/Getty Images
A Pakistani technician takes samples in a laboratory alongside a ribbon promoting World Aids Day in Islamabad on November 30, 2013. FAROOQ NAEEM/AFP/Getty Images