Kenya's young HIV ambassador holds UN audience captive

Elijah and the president Uhuru during the World Aids Day celebrations in Machakos

He stood bravely, unfazed by the world leaders facing him at the United Nations conference on Aids in New York.

Then in a clear penetrating voice, Elijah Zachary Lamaiyan Simel, 12, challenged these presidents to address the stigma that children living with HIV face.