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目的 探讨四川盆地发生的一种原因未明疾病—病的病因。方法 现场流行病学调查 ,记录流行特征 ,用病例对照方法予以分析。结果 11999年 7月当地患病率约为 2 0 % ;2病例的绝大部分发生在 1970～1980年期间 ;3病例集中发生在一个范围约 6 0 0 m× 5 0 0 m为小丘所围绕的低洼地区 ;4生活中 ,怀疑可能与发病有关的唯一异常因素是本病流行期间居民食用了较多红薯 ;5关于防治策略做了简短的讨论。结论 病病因可能是某种真菌毒素 ,来源于为霉菌污染的红薯
Objective To explore a cause of unknown origin of the disease in Sichuan Basin. Methods Epidemiological survey of the site, record of epidemiological characteristics, with case-control method to be analyzed. Results The prevalence rate in July 11999 was about 20%. Most of the 2 cases occurred between 1970 and 1980. 3 cases occurred in a range of about 600 m × 500 m for hillocks Surrounded by the low-lying areas; 4 life, the only suspected abnormalities may be related to the disease during the epidemic of residents eat more sweet potatoes; 5 on the prevention and control strategies were briefly discussed. Conclusion The etiology of rickets may be a mycotoxin derived from sweet potato contaminated with mold