Polio sufferer Zhang Fenglin, 11, is supported by her mother Yang Chunyun on their way to school in Longwang village, Southwest China's Guangxi Zhuang autonomous region, Feb 15, 2012. The girl was diagnosed with polio and has been walking to school with her mother's assistance for three years. Zhang's father also has leg disability and works outside the village. [Photo/Xinhua]

Zhang Fenglin hobbles to school with her mother, Feb 15, 2012. [Photo/Xinhua]