Emmanuel Leiyo, 9, living with HIV/AIDS pose for a photograph at his Dagoretti Children's Centre in Nairobi November 28, 2008. An estimated 33 million people worldwide were living with the HIV virus, mostly in sub-Saharan Africa, at the end of 2007. AIDS has killed 25 million since being identified in 1981. Picture taken on November 28, 2008. REUTERS/Antony Njuguna (KENYA)
REUTERS/ANTONY NJUGUNA