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目的了解浙江省血吸虫病疫情动态变化,为制定防治策略提供依据。方法采用系统抽样结合环境抽查法监测螺情,采用压碎法检查钉螺血吸虫感染情况。对有螺村和来自或往返于尚未控制血吸虫病县的人畜进行筛查和病情监测。结果浙江省2013年有螺乡镇98个,有螺村369个;钉螺面积94.21 hm2,解剖钉螺55 625只,未发现感染性钉螺。血清学查病130 450人,阳性率为0.84%;其中流动人口血清学查病75 317人,阳性率为0.85%。粪检1 112人,未发现本地粪检阳性者,查出输入性血吸虫感染者14人。有历史晚期血吸虫病(晚血)患者1 161例,救助率100.00%。结论浙江省血吸虫病疫情稳定,但尚有大面积残存钉螺面积,输入性病例时有发现,今后血防重点是查灭残存钉螺和防控外来传染源。
Objective To understand the dynamic change of epidemic situation of schistosomiasis in Zhejiang Province and provide the basis for making prevention and treatment strategies. Methods Sampling was performed by systematic sampling combined with environmental sampling. The infection status of snail schistosomes was examined by crushing method. Surveillance and surveillance of people and livestock from Youluo Village and from or from areas that have not yet been controlled for schistosomiasis. Results In 2013, there were 98 villages in Youluo Township and 369 villages in Youluo Village in Zhejiang Province. The areas of snails were 94.21 hm2 and 55 625 snails were dissected. Infectious snails were not found. Serodiagnosis of 130,450 people, the positive rate was 0.84%; of which floating population serological 75,177, the positive rate was 0.85%. 1 112 dung seized, found no local fecal seized positive, found that 14 imported schistosome infection. There were 1,161 patients with advanced schistosomiasis (late blood) with a rescue rate of 100.00%. Conclusion The epidemic situation of schistosomiasis is stable in Zhejiang Province, but there are still large areas of surviving snails. In the case of imported cases, the focus of prevention and treatment of snails is to check the remaining snails and control the sources of external infection.