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目的调查云南某部旱蚂蟥危害,现场观察旱蚂蟥驱避药物的效果、安全性、使用便捷性。方法采用线路调查法,对参加过边防巡逻人员全额调查,药物驱避以现场人员随机分组,喷洒衣物计算防叮咬率。结果云南某部边防官兵旱蚂蟥平均叮咬率为78.1%,0.05%制剂对旱蚂蟥KT50为2.7 min,喷洒衣物防叮咬率为100%,持效4 h以上,并无不良反应。结论云南某地旱蚂蟥危害严重,该剂是一种有效、安全、使用简便的旱蚂蟥驱杀药物。
Objective To investigate the harm of aridity of leech in Yunnan and observe the effect, safety and ease of use of dry leech to repel drug. Methods The method of route survey was used to investigate the persons who participated in the border patrols. The drugs were repelled randomly by the field personnel and the clothing was sprayed to calculate the anti-bite rate. Results The average bite rate of dry leech in border guards in Yunnan was 78.1%. The KT50 of 0.05% was 2.7 min in dry leech, and the bite rate of sprayed clothes was 100%. Conclusion The drought-tilapia in Yunnan Province is seriously endangered. The agent is an effective, safe and easy-to-use medicine for drought tilapia.