Tony Odong, a 12-year old victim of nodding syndrome, sits in front of his home playing with a dead chicken found nearby in Pader, Uganda, March 8, 2012.
The cause of nodding syndrome is not yet known by scientists despite years of research. Ugandan Ministry of health statistics indicate that over 3,000 children have been affected by the disease and some 170 other children have died since the first case was reported in 2009. <Photo: Xinhua/Yuan Qing>
