STORY: World AIDS Day is observed from Africa to Australia.
In Nigeria, former players from the national team joined a football game, with the theme "Play to Zero".
As part of the UNAIDS strategy, the global World Aids Day theme for 2013 "Getting to Zero" aims to see a world with zero new HIV infections, and zero AIDS-related deaths.
Around 3.4 million people in Nigeria are living with HIV/AIDS. Organisers set up a testing center near the pitch, and encouraged locals to get examined.
In eastern India, a candlelight march aims to raise awareness. A doctor in Tripura says nearby states are determined to be at high risk for AIDS.
Early in the millennium, India was on the verge of becoming a hotbed for HIV infections but timely intervention has arrested the freefall.
This year, the number of newly infected was reduced by 57 percent, an AIDS control agency said.
