四川省人体旋毛虫病暴发疫情概况及因素分析

Epidemic Situation of Human Trichinosis in Sichuan Province

目的 了解四川省人群旋毛虫病流行现状，分析发病因素，为今后防治工作提供科学依据。方法 收集、整理、统计、总结我省历次暴发疫情资料，分析有关因素，提出防治依据与措施。结果1968-2002年，暴发疫情为散在、点状分布，且均为阿坝州、甘孜州两大藏区。发病原因均为人群生食或半生食熊肉、猪肉、野猪肉所致。发病无年龄、性别、季节之分，患者从2～69岁不等，发病率为49．20％，病死率为4．35％，位居全国第三位。结论 四川省人群旋毛虫病暴发疫情集中于习惯生食与半生食动物肉类的藏区人群，与藏区人群的生活、饮食习惯、医疗条件密切相关。重视与加强四川省藏区人群的旋毛虫病健康教育与动物肉类的检疫工作，提高藏区基层医务人员对旋毛虫病的诊治水平，改善医疗条件是阻断我省人群旋毛虫病疫情发生的切实可行的措施。

Objective To summarize the epidemic situation of human trichinosis in Sichuan Province from 1968 to 2002 and to analyse the epidemic factors so as to provide scientific basis for control program. Method Epidemic data of human trichinosis in Sichuan over the years were collected, identified and analysed. Result The epidemic situation revealed sporadic and point distribution,and all the cases concentrated in Aba and Ganzi Tibetan autonomous regions with an incidence rate of 49.20% and mortality rate of 4. 35%, which standed the 3^rd on the list in China. To eat raw or half-cooked meat of bear,pig or wild pig was the causation of the disease. The cases aged from 2 to 69 and occurred in different seasons and sexes. Conclusion In Siehuan Province, human trichinosis distributed mainly in Tibetan regions which closely related to living style and medical resources. It has been suggested by the authors that health education,medical level and animal quarantine should be strengthened.