Monitoring the Transmission of Schistosoma japonicum in Potential Risk Regions of China, 2008 – 2012
AbstractSchistosomiasis japonica, caused by Schistosoma japonicum infection, remains a major public health concern in China, and the geographical distribution of this neglected tropical disease is limited to regions where Oncomelania hupensis, the intermediate host of the causative parasite, is detected. The purpose of this study was to monitor the transmission of S. japonicum in potential risk regions of China during the period from 2008 through 2012. To monitor the transmission, 10 fixed surveillance sites and 30 mobile sentinel sites were selected in 10 counties of four provinces, namely Anhui, Jiangsu, Chongqing and Hubei. There were 8, 9, 6, 2 and 3 cases infected with S. japonicum detected in the 30 mobile sentinel sites during the 5-year study period, while 27 subjects were positive for the antibody-based serum test in the 10 fixed sentinel sites; however, no infection was found. In addition, neither local nor imported livestock were found to be infected. No O. hupensis snails were detected in either the fixed surveillance or the mobile sentinel sites; however, the snail host was found to survive and reproduce at Chaohu Lake, inferring the potential of transmission of the disease. It is suggested that the continuous surveillance of schistosomiasis japonica should be carried out in both the endemic foci and potential risk regions of China, and an active, sensitive system to respond the potential risk of transmission seems justified.
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Dang, H.; Xu, J.; Li, S.-Z.; Cao, Z.-G.; Huang, Y.-X.; Wu, C.-G.; Tu, Z.-W.; Zhou, X.-N. Monitoring the Transmission of Schistosoma japonicum in Potential Risk Regions of China, 2008 – 2012. Int. J. Environ. Res. Public Health 2014, 11, 2278-2287.
Dang H, Xu J, Li S-Z, Cao Z-G, Huang Y-X, Wu C-G, Tu Z-W, Zhou X-N. Monitoring the Transmission of Schistosoma japonicum in Potential Risk Regions of China, 2008 – 2012. International Journal of Environmental Research and Public Health. 2014; 11(2):2278-2287.Chicago/Turabian Style
Dang, Hui; Xu, Jing; Li, Shi-Zhu; Cao, Zhi-Guo; Huang, Yi-Xin; Wu, Cheng-Guo; Tu, Zu-Wu; Zhou, Xiao-Nong. 2014. "Monitoring the Transmission of Schistosoma japonicum in Potential Risk Regions of China, 2008 – 2012." Int. J. Environ. Res. Public Health 11, no. 2: 2278-2287.