关键词: 血吸虫病； 湖沼型流行区； 化疗； 感染； 再感染； 新建县

Abstract:

Objective To understand the dynamics of human infection and reinfection of Schistosoma japonicum after chemo? therapy in marshland and lake endemic regions so as to provide the evidence for developing a cost?effective control strategy. Meth? ods From 2007 to 2011，the schistosome infection，intensities and reinfection of population were investigated and the results were analyzed dynamically in Caohui Village，a national schistosomiasis surveillance site in Changyi Township，Xinjian County， Jiangxi Province，China. Results The schistosome infection rate was 3.55% and the mean intensity was 1.56 in 2007，and the schistosome infection rate was 1.52% and the mean intensity was 1.60 in 2011. The reinfection rates were 2.70%，9.09% and 2.47% in 2009，2010，and 2011，respectively. Conclusion The schistosomiasis endemic situation shows a downtrend in the vil? lage. However，the reinfection is still serious；therefore，we should strengthen the research of risk factors of reinfection and control them.

Key words: Schistosomiasis japonica； Marshland and lake regions；Chemotherapy； Infection； Reinfection, Xinjian County