
CHONGQING, CHINA - JANUARY 9: (CHINA OUT) Zhang Bingzhu works in a field in the Longshun Village at Linjiang Township on January 9, 2007 in Chongqing Municipality, China. Longshun Village is home to 97 patients suffering from the ''weak leg'' disease which dates back to the outbreak in the village of a mysterious diseases in July, 1979. The outbreak had left 300 villagers infected with a disease that causes swelling of the lower leg and numbness of the extremtities. Doctors had diagnosed the disease as radiculitis but a cause of the disease remains unknown. (Photo by China Photos/Getty Images)
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