沂水县地处鲁南沂蒙山区，是IDD的重病区。全县112万人口中，农业人口占105万。因此IDD防治的关键在农村。碘盐作为防治IDD的根本途径，早在70年代就得到本县各级领导的共识和重视。全县于1978年开始供应碘盐，1986年建立了县乡两级监测体系。1995年，为了迎接消除IDD的初步考 Yishui County is located in the mountains of Yoneng Lunan, is IDD’s ward. Among the 1.12 million people in the county, the agricultural population accounts for 1.05 million. Therefore, IDD prevention and control in rural areas. Iodized salt as a fundamental way to prevent and control IDD, as early as the 70s have been the leaders of all levels at all levels of the consensus and attention. The county began to supply iodized salt in 1978, and set up a county-township two-level monitoring system in 1986. In 1995, in order to meet the initial test to eliminate IDD