石灰岩山区华支睾吸虫病流行特点与防治效果分析

目的 总结石灰岩山区华支睾吸虫病的流行特点，追踪防治效果，以制订相应防治措施。方法 分析历年调查资料，总结流行病学特征，追踪大崀村防治效果施。结果 阳山县石灰岩山区华支睾吸虫病广泛流行，第一中间宿主以长角涵螺为主，第二中间宿主以麦穗鱼为主。1975年大崀村人群华支睾吸虫感染率48．25％，经综合防治后，30年追踪观察未见反复，防治效果巩固。结论 石灰岩山区华支睾吸虫病的流行病学在第一、二中间宿主，感染方式等与珠江三角洲有一定区别，但经综合防治后效果巩固，应采取反复查治结合全民服药技术措施进行防治。

The prevalent characteristics of Clonorchiasis sinensis in Limestone Mountainous area and control measures.

Objective To analyze the prevalent characteristics of clonorehiasis sinensis in limestone mountainous districts, summarize the control results and put forward measures for control of the disease. Methods The data concerning the survey of elonorehiasis sinensis in the past years were eoUeted and analyzed. Results Clonorehiasis sinensis was prevalent widely in limestone mountainous areas of Yangshan County. The first intermediate host was Alocinma longicornis and the second intermediate host was Pseudorasbora parva mainly, The infection rate of Pseudorasbora parva with Clonorchis sinensis ceracariae was 19.63 % in 1980 and zero in 2005; the infection rate of Alocinma longieornis with Clonorehis sinensis cereariae in 1978 was 93.33% and zero in 2005 o The infection rate of Clonorehis sinensis in inhabitants in Dalang village was as high as 48.25 % in 1975 and now positives can be detected in 2005. Conclusion The comprehensive control measures is effective and the control results is consolidated .