A man lights candles on a red ribbon-shaped cloth in observance of the World AIDS Day in Quezon City, the Philippines, Dec. 1, 2016. People around the world are observing the World AIDS Day to raise awareness and prevention on HIV/AIDS. (Xinhua/Rouelle Umali)

People light candles during an AIDS awareness program on the eve of World AIDS Day in Agartala, capital city of Tripura, India, Nov. 30, 2016. World AIDS Day is observed on Dec. 1 every year as millions of people in India are infected with HIV, the AIDS virus, but talking about the disease and sexual health issues in general is still largely taboo. (Xinhua/Stringer)

Indonesian Muslim women participate in the commemoration of World AIDS Day in Medan, Indonesia, Dec. 1, 2016. (Xinhua/Albert Damanik)