Abstract:

【Abstract】 Objective  To analyze the change trend of schistosomiasis in Fanchang county of Anhui province from 2009 through 2014 for scientific basis to plan following prevention strategies. Methods  The data on schistosomiasis were collected based on the annual reports, information generated from individual monitoring site and objective data across the county from 2009 to 2014, and analyzed in longitudinally fashion. Results  The infection rate of schistosomiasis in population and in farm cattle as well as areas with infected snails tended to decline year by year in general. The average rate in population was 0.27% in 2014, with an decrease by 55.7% compared to 2009. No acute schistosomiasis case and no infected cattle were reported since 2008 and 2012, respectively. The areas with snails were reduced to 103.2 square meters in 2014, with a decrease by 16.4% compared to 2009, and areas with infected snails were free since 2012. The density for living snails waved between 2009 and 2011, and the density was descended after 2011. In 2014, the density for living snails was declined to 0.14 pcs/0.1 m2, with a decrease by 65.0% compared to 2009. Conclusion  Prevalence of schistosomiasis is effectively controlled in Fanchang county, and currently remains lowest in history.

Key words: Schistosomiasis, Transmission control, Epidemic situation analysis, Fanchang county