Lü S B, Liu Y W, Liu Y M, Xu S G, Li Y F, Yuan M, He T T, Lin D D
Jiangxi Provincial Institute of Parasitic Diseases, Nanchang 330046, China.
Poyang County Station of Schistosomiasis Control, Shangrao City, Jiangxi Province, China.
Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi. 2020 Jul 29;32(5):498-501. doi: 10.16250/j.32.1374.2020039.
To investigate the prevalence of infections in released to Poyang Lake areas and evaluate the impact of the project of " released to wild environments for natural reproduction and growth" "( return home project") on the transmission of schistosomiasis in Poyang Lake areas.
During the period from April 2018 to December 2019, the population distribution, inhabiting activity and natural reproduction of released to Poyang Lake areas were investigated by means of GPS and artificial observations. The infection was identified in animal feces in inhabitats using a hatching test, and snail distribution was surveyed in inhabiting grass islands using a systematic sampling method.
A total of 51 were released to the Poyang Lake areas in 2018, which subsequently produced 5 habitats in Yinlong Lake, Longkou, Nanchi Lake, Lianzi Lake and Zhu Lake. was found to predominantly inhibit in grass islands, farmlands and forest lands in hilly regions around the Poyang Lake areas. The natural reproduction rate of was 25% in the habitats in 2019, and the mean density of snails was 0.009 to 0.039 snails/0.1 m in inhabitats; however, no infection was identified in snails. In addition, the mean densities of wild and bovine feces were 4.6 samples/hm and 2.1 samples/hm, Conclusions The released to Poyang Lake areas may get infections with , and cause schistosomiasis transmission through fecal contamination in grass islands. The impact on and the prevalence of infection was 4.35% and 13.16% ( = 0.236), respectively; however, the intensities of infections were "+++" and "+", respectively.
The released to Poyang Lake areas may get infections with , and cause schistosomiasis transmission through fecal contamination in grass islands. The impact on local schistosomiasis transmission and the response strategy requires to be investigated following the release of to lake regions, to ensure the achievement of the goal of schistosomiasis elimination and the successful implementation of the " return home project" in Poyang Lake areas.
调查放流至鄱阳湖区的[具体物种]感染情况，评估“放流至野外环境自然繁殖生长”项目（“回家工程”）对鄱阳湖区血吸虫病传播的影响。
2018年4月至2019年12月期间，通过GPS定位和人工观察等手段，对放流至鄱阳湖区的[具体物种]的种群分布、栖息活动及自然繁殖情况进行调查。采用孵化试验在[具体物种]栖息地的动物粪便中鉴定[具体物种]感染情况，采用系统抽样方法在[具体物种]栖息的草洲调查钉螺分布情况。
2018年共有51只[具体物种]放流至鄱阳湖区，随后在银龙湖、龙口、南池湖、莲子湖和朱湖形成了5个栖息地。发现[具体物种]主要栖息于鄱阳湖区周边丘陵地带的草洲、农田和林地。2019年[具体物种]栖息地的自然繁殖率为25%，[具体物种]栖息地产地钉螺平均密度为0.009～0.039只/0.1平方米；但未在钉螺中鉴定出[具体物种]感染。此外，野生[具体物种]粪便和牛粪的平均密度分别为4.6份/公顷和2.1份/公顷。结论放流至鄱阳湖区的[具体物种]可能感染[具体物种]，并通过草洲粪便污染导致血吸虫病传播。对[具体物种]感染的影响及感染率分别为4.35%和13.16%（P = 0.236）；然而，[具体物种]感染强度分别为“+++”和“+”。
放流至鄱阳湖区的[具体物种]可能感染[具体物种]，并通过草洲粪便污染导致血吸虫病传播。放流[具体物种]至湖区后，对当地血吸虫病传播的影响及应对策略有待进一步研究，以确保实现血吸虫病消除目标，保障鄱阳湖区“回家工程”的顺利实施。
