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目的了解2016年湖北省血吸虫病重点水域的水体感染性,分析可疑高危环境血吸虫病的传播风险。方法选择长江、汉北河、富河3大水系设立哨鼠监测预警点。采用哨鼠法检测水体的感染性,同时观察滩面人畜活动情况,对出现血吸虫尾蚴感染性水体的区域启动应急响应机制。结果 5-6月在10个哨鼠监测点中,长江流域有2个点检出阳性哨鼠,阳性点检出率为20%,回收的200只小鼠全部解剖,检出阳性哨鼠5只,哨鼠总感染率为2.5%,获得血吸虫成虫5条,阳性鼠平均虫荷为1条/鼠。对2个哨鼠阳性点及时启动了应急响应机制,未出现血吸虫病重大疫情。8-9月8个哨鼠点,160只小鼠全部解剖,未查出血吸虫感染阳性哨鼠。结论哨鼠监测结果对分析湖北省血吸虫病传播风险具有重要意义。
Objective To understand the water infectivity of schistosomiasis in key areas of Hubei Province in 2016 and to analyze the risk of transmission of suspected high-risk schistosomiasis. Methods The Yangtze River, Hanbei River and Fuhe 3 water systems were set up to monitor the warning points of sentinel mice. Sentinel method was used to test the infectivity of the water body, meanwhile, the observation of the human and livestock activities on the beach surface started the emergency response mechanism to the area where the schistosome cercariae infected water appeared. Results From May to June, of the 10 sentinel test sites, 2 were positive in the Yangtze River Basin, and the positive detection rate was 20%. All 200 recovered mice were dissected and the positive sentinel 5 Only, the total infection rate of sentinel 2.5%, 5 adult schistosomiasis, positive mice average load of 1 worm / mouse. On the two positive points of the sentinel promptly started the emergency response mechanism, did not appear major epidemic of schistosomiasis. 8 - September 8 sentinel point, 160 mice were all anatomized, not found schistosome infection-positive sentinel. Conclusion The results of sentinel surveillance are of great significance for the analysis of the risk of schistosomiasis transmission in Hubei Province.