Nkosi Johnson is 11 years old and is living with AIDS. His mother died from AIDS when he was very young and he has grown up in Johannesburg with his adopted mother, Gail Johnson. Among the giant sets and razzmatazz of the opening ceremony of the 13th International AIDS conference in Durban in July, Nkosi cut a small figure as he stepped onto the stage to deliver his poignant message to the world.