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目的了解1990-2010年四湖地区潜江市渠道钉螺消长情况,为制定血吸虫病防治策略提供参考依据。方法对1990-2010年四湖地区潜江市查灭螺情况进行回顾性分析。结果与1990年相比,2010年四湖地区潜江市渠道钉螺面积下降31.05%,钉螺密度下降92.08%,钉螺感染率下降87.69%。结论四湖地区潜江市20年间渠道主要螺情指标有所下降,其原因与开展药物和工程灭螺、洪涝灾害及环境影响因素等有关,应根据不同情况采取针对性防治措施。
Objective To understand the growth and decline of Oncomelania snails in the channels of Qianjiang City, Sichuan Province from 1990 to 2010, and to provide a reference for the development of schistosomiasis control strategies. Methods A retrospective analysis was conducted on the detection of snail in Qianjiang City during the period of 1990-2010. Results Compared with 1990, the area of snails in Qianjiang of Sihu Region dropped by 31.05% in 2010, the density of snails decreased by 92.08% and the infection rate of snails decreased by 87.69%. Conclusions The major indicators of the snail channel in Qianjiang City in the Four-Lake Region have declined over the past 20 years. The reasons for this are related to carrying out snail-killing, flood and waterlogging disasters, and environmental impact factors for drugs and engineering. Targeted measures should be taken according to different situations.