结论兴建防螺扩散设施，阻断钉螺扩散途径，形成单元性强的灭螺小区进行治理是垸内水网型血吸虫病流行区控制钉螺减少发病的有效对策和措施。
Conclusion Setting up the installation obstracted snails to cut off the way of snails spreading was the effective measure of control schistosomiasis in lake-swamp areas.
结论兴建防螺扩散设施，阻断钉螺扩散途径，形成单元性强的灭螺小区进行治理是垸内水网型血吸虫病流行区控制钉螺减少发病的有效对策和措施。
Conclusion Setting up the installation obstracted snails to cut off the way of snails spreading was the effective measure of control schistosomiasis in lake-swamp areas.
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