People autograph on a scroll to welcome the 21st World AIDS Day, in Dalian, a coastal city in northeast China's Liaoning Province, November 30, 2008. The World AIDS Day falls on December 1. This year's theme is "Stop AIDS. Keep the Promise."

Students of Huaibei Vocational and Technical College publicize AIDS awareness knowledge to a woman at Dongzhuang Village in Huaibei City, east China's Anhui Province, November 30, 2008. The World AIDS Day falls on December 1. This year's theme is "Stop AIDS. Keep the Promise."