全世界约有１６亿人口暴露于碘缺乏相关性疾病危险之中，消除这种状态是ＷＨＯ及其相关组织的主要目标。在东非甲状腺毒症暴发已提出关于用碘盐立即完全纠正碘缺乏的安全性的关心。作者报告了瑞典的１６年随访资料，１９８０年碘盐浓度从７．５ｍｇ／ｋｇ上升到１５ｍｇ／... About 1.6 billion people worldwide are at risk of exposure to iodine deficiency-related diseases and the elimination of this condition is the primary goal of WHO and its related organizations. Outbreaks of thyrotoxicosis in East Africa have raised concerns about the safety of iodine deficiency with iodized salt immediately and completely corrected. The authors report 16-year follow-up data from Sweden, in 1980 the iodized salt concentration increased from 7.5 mg / kg to 15 mg / kg.