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对林口县近４０年的克山病病情进行了动态分析．结果显示，急克自１９５５年有记载开始到１９８２年共发病２４４６例，死亡４９０例，平均每年发病９４例，死亡１９例，这期间共有６次流行高峰，其中，１９６１年和１９７０年两次较为严重．发病率均高达９０／１０万以上．全县１９７２年以来采取以口服亚硒酸钠为主的综合防治措施，使当年发病率降为４９．８８／１０万，病情显著下降．１９８２年后已连续１１年无急克、亚急克病人发生，１９８５年以来也无自然慢克出现，克山病防治工作达到国家基本控制标准。
A dynamic analysis of Keshan disease in Linkou County in recent 40 years was carried out. The results showed that acute grams recorded in 1955 to the beginning of a total of 2446 cases in 1982, 490 cases of death, the average annual incidence of 94 cases, 19 cases of death, during which a total of 6 epidemic peak, of which 1961 and 1970 twice More serious. The incidence rates are as high as 90/10 million. The county since 1972 to take oral sodium selenite-based comprehensive prevention and control measures, so that the incidence rate dropped to 49.88 / 100 000, the disease decreased significantly. Since 1982, there have been no emergency interventions for 11 consecutive years and no acute shock occurred since 1985. Keshan disease prevention and control work has reached the basic national control standards.