https://www.selleckchem.com/products/ox04528.html 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 repration of the " return home project" in Poyang Lake areas. The E. davidianus released to Poyang Lake areas may get infections with S. japonicum, 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 E. davidianus to lake regions, to ensure the achievement of the goal of schistosomiasis elimination and the successful implementation of the "E. davidianus return home project" in Poyang Lake areas. To investigate the prevalence and risk factors of infections among primary school students in Jiangjin District, Chongqing City. A cross-sectional questionnaire survey was conducted among students sampled from a primary school in Jiangjin District, Chongqing City on April, 2018, and their stool samples were collected for microscopic examinations, culture and PCR assays to analyze the prevalence of infect