一种罕见疾病1937年,在中国东北黑龙江省偏僻的农村地区首次发现一种严重的心肌病。妇女和儿童是主要的发病人群。该病的发生通常无任何征兆,导致大量的人口死亡,主要临床症状是心肌坏死,导致急性低氧、呕吐和最终在数小时内死亡。对该病最初的调查开始于20世纪30年代末至40年代,但未找到生物学感染源。该疾病即被以首次报道死亡病例的克山县来命名为克山病。随后,在20世纪40～60年代,中国另外12个省份也出现克山病的流行。当时发病地区的人 A rare disease In 1937, a serious cardiomyopathy was first found in remote rural areas of Heilongjiang Province in northeastern China. Women and children are the major affected groups. The onset of the disease is usually without any indication, leading to a large population deaths, the main clinical symptom being myocardial necrosis, resulting in acute hypoxia, vomiting and eventually death within a few hours. The initial investigation of the disease began in the late 1930s and 1940s but no source of biological infection was found. The disease was referred to as Keshan disease in Keshan County, where the first death was reported. Subsequently, in the 1940s and 1960s, Kiashan disease was also reported in another 12 provinces in China. People in the area of ​​onset