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本文报道了鄱阳湖区7个疫区村、13个单元人群血吸虫病再感染和疾病传播的规律,阐明了不同类型疫区中止化疗2年后疫情回升的动态,提出了4—6月间为湖区血吸虫在中间宿主—钉螺世代更替间的“交汇点”的新概念,提供了病牛为血吸虫病主要传染源的新证据,重申了耕牛化疗在疾病控制中的重要地位;在对比不同防治策略费用—效果的基础上,创用了评价近,中、远期效果的“综合指数”,并据此提出了以易感地带为中心,开展灭螺和家畜化疗同步控制疾病传播的设想,以及近期湖区血防目标及其优化控制策略的模式。
This paper reports the rule of re-infection and disease transmission of schistosomiasis in seven outbreak villages and 13 unit populations in Poyang Lake area, clarifies the dynamics of the epidemic recovery after 2 years of stopping chemotherapy in different types of epidemic areas, The new concept of “crossing point” of schistosoma japonicum in the intermediate host-snail generation replacement provides new evidence that cows are the major source of schistosomiasis and reiterates the importance of cows’ chemotherapy in disease control. After comparing different control strategies Based on cost-effectiveness, a “composite index” for assessing near-to-mid-term and long-term effects was created and the concept of synchronic control of transmission of molluscs and domestic animal diseases to susceptible zones was put forward accordingly Recent Blood and Fire Prevention Targets in Lake Area and Its Optimization Control Strategy.