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Apropos: critical analysis of molluscicide application in schistosomiasis control programs in Brazil

机译：Apropos：巴西血吸虫病控制计划中杀灭杀虫剂的严格分析

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Schistosomiasis is a snail-transmitted infectious disease affecting over 200 million people worldwide. Snail control has been recognized as an effective approach to interrupt the transmission of schistosomiasis, since the geographic distribution of this neglected tropical disease is determined by the presence of the intermediate host snails. In a recent Scoping Review published in Infectious Diseases of Poverty, Coelho and Caldeira performed a critical review of using molluscicides in the national schistosomiasis control programs in Brazil. They also described some chemical and plant-derived molluscicides used in China. In addition to the molluscicides described by Coelho and Caldeira, a large number of chemicals, plant extracts and microorganisms have been screened and tested for molluscicidal actions against Oncomelania hupensis, the intermediate host of Schistosoma japonicum in China. Here, we presented the currently commercial molluscicides available in China, including 26% suspension concentrate of metaldehyde and niclosamide (MNSC), 25% suspension concentrate of niclosamide ethanolamine salt (SCNE), 50% niclosamide ethanolamine salt wettable powder (WPN), 4% niclosamide ethanolamine salt dustable powder (NESP), 5% niclosamide ethanolamine salt granule (NESG) and the plant-derived molluscicide “Luowei”. These molluscicides have been proved to be active against O. hupensis in both laboratory and endemic fields, playing an important role in the national schistosomiasis control program of China. Currently, China is transferring its successful experiences on schistosomiasis control to African countries. The introduction of Chinese commercial molluscicides to Africa, with adaptation to local conditions, may facilitate the progress towards the elimination of schisosomiasis in Africa.Electronic supplementary materialThe online version of this article (doi:10.1186/s40249-017-0246-x) contains supplementary material, which is available to authorized users.
机译：血吸虫病是一种通过蜗牛传播的传染病，全世界感染了2亿多人。蜗牛控制已被认为是阻断血吸虫病传播的有效方法，因为这种被忽视的热带病的地理分布是由中间寄主蜗牛的存在决定的。在最近发表于《贫困传染病》的《范围调查》中，Coelho和Caldeira对巴西国家血吸虫病控制计划中使用杀软体动物剂进行了严格审查。他们还介绍了中国使用的一些化学和植物来源的杀软体动物剂。除了Coelho和Caldeira所描述的杀软体动物剂外，还筛选并测试了许多化学物质，植物提取物和微生物对日本血吸虫的中间宿主-钉螺的杀软体动物作用。在这里，我们介绍了目前在中国可买到的商业杀软体动物剂，包括26％的乙二醛和niclosamide悬浮浓缩物（MNSC），25％的niclosamide乙醇胺盐（SCNE）悬浮浓缩物，50％niclosamide乙醇胺盐可湿性粉剂（WPN），4％氯硝胺乙醇胺盐粉剂（NESP），5％氯硝胺乙醇胺盐颗粒剂（NESG）和植物来源的杀虫剂“罗威”。这些杀软体动物剂已被证明在实验室和地方性领域中都具有对抗猪O的活性，在中国国家血吸虫病控制计划中发挥着重要作用。目前，中国正在将其在血吸虫病控制方面的成功经验转移到非洲国家。将中国的商业杀软体动物剂引入非洲，并因地制宜，可以促进非洲消灭血吸虫病的进展。电子补充材料本文的在线版本（doi：10.1186 / s40249-017-0246-x）包含补充剂资料，可供授权用户使用。

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