In this photo taken Nov. 21, 2012, a young schoolboy makes handstands as he plays with others in the yard of the Hot Courses Primary School, in the village of Nyumbani which caters to children who lost their parents and grandparents to HIV in Kenya. Dec. 1 is World AIDS Day and UNAIDS says that as of 2011, an estimated 23.5 million people living with HIV lived in sub-Saharan Africa, representing 69 percent of the global HIV burden. Eastern and southern Africa were the hardest-hit regions.
In this photo taken Nov. 21, 2012, young schoolboys walk home at the end of the school day in the yard of the Hot Courses Primary School, in the Kenyan village of Nyumbani, which caters to children who lost their parents to HIV.
In this photo taken Nov. 21, 2012, children sing the lullaby "Twinkle, Twinkle, Little Star" during class at the Hot Courses Primary School, in the Kenyan village of Nyumbani. The village caters to children who lost their parents to HIV.
In this photo taken Nov. 21, 2012, American sustainability consultant John Sheffy stands in front of rows of Melia Volkensii trees planted in the village of Nyumbai. The trees were planted in the hope that after a number of years, the village can harvest the hardwood for timber and become self-sustaining.
In this photo taken Nov. 21, 2012, children attend an outdoor Christian prayer session in front of a mural on the side of the meeting hall in the village of Nyumbani, which caters to children who lost their parents to HIV.
In this photo taken Nov. 21, 2012, worker Catherine Kyule throws the fruit of the Melia Volkensii tree into a hollowed log before pounding them to obtain the seeds inside for planting in the hope that after a number of years the village can harvest the wood for timber and become self-sustaining.
In this photo taken Nov. 21, 2012, 63-year-old grandmother Janet Kitheka, collects her adopted "grand-daughter" Lucy, 13, right, at the end of the school day in the yard of the Hot Courses Primary School in the village of Nyumbani, which caters to children who lost their parents to HIV. Grandparents who lost their children to HIV also live in the village.
In this photo taken Nov. 21, 2012, a young schoolboy makes handstands during break in the yard of the Hot Courses Primary School in the village of Nyumbani, which caters to children who lost their parents to HIV.
In this photo taken Nov. 21, 2012, children attend morning assembly in the yard of the Hot Courses Primary School in the village of Nyumbani, which caters to children who lost their parents to HIV.
In this photo taken Nov. 21, 2012, a worker pats the wet earth after planting and watering a seedling of the Melia Volkensii tree in the hope that after a number of years the village of Nyumbani can harvest the hardwood for timber and become self-sustaining. The village caters to children who lost their parents to HIV.
In this photo taken Nov. 21, 2012, a worker waters a seedling of the Melia Volkensii tree after planting it in the village of Nyumbani, which caters to children who lost their parents to HIV.
In this photo taken Nov. 21, 2012, young schoolboys play in the shade of trees during break in the yard of the Hot Courses Primary School in the village of Nyumbani, which caters to children who lost their parents to HIV.