An investigation on current situation in control and prevention of coal-burning-borne endemic fluorosis in key counties of Yunnan Province

Objective To understand the current situation on coal-burning-borne endemic fluorosis control and prevention in Yunnan Province,timely discover problems in prevention and control of the disease,and achieve the"13 th Five-Year Plan"objectives as scheduled.Methods Simple random sampling method was adopted to conduct investigations in Weixin County,Daguan County of Zhaotong City.