Abstract：Objective To understand the epidemic situation and control effect of schistosomiasis in Jinhu County from 2016 to 2020, and to explore the future control countermeasures. Methods From March to April every year, the snail survey was carried out by the method of systematic sampling combined with environmental sampling. The distance between the frame and the inland was 5-10 m, and the lake beach was 10-20 m. The snails were dissected by crushing method to check the infection of Schistosoma japonicum. From June to September every year, net fishing method and straw curtain method were used to monitor the snail diffusion. The snail carrying status of passing ships was investigated. Dipstick dye immunoassay (DDIA) was used to screen schistosomiasis among residents of historical endemic villages, floating population and outpatients of schistosomiasis surveillance every year. Kato Katz method was used to detect the pathogens of DDIA positive patients. Results A total of 15,373.85 hm2 of snails were inspected in Jinhu County from 2016 to 2020, and 3,010 kg of floating objects were salvaged. 800 straw curtains were put in, 215 ships were investigated, and no snails were found. The total number of serological examination was 19,910, and 286 were positive, with the positive rate of 1.44%. The serological positive rate of outpatients was higher than those of residents and floating population in epidemic areas, and the difference was statistically significant (χ2＝50.869, χ2＝91.591, both P<0.01). The serological positive rate was higher in floating population than in residents in epidemic areas, with a statistically significant difference(χ2＝4.477, P<0.05). The positive rate of blood test in males and females were 1.53% and 1.35%, respectively, showing a statistically significant difference(χ2=1.034, P>0.05). Patients with a positive blood test were mainly distributed in the age group of 40 years and above, but no statistically significant differences were found among the age groups(χ2＝13.692, P> 0.05). No schistosomiasis was found in 279 stool samples detected. The total amount of molluscicidal effect was 153.46 hm2 by drug consolidation, and 9.67 hm2 by environmental modification. 281 cases were treated with extended chemotherapy. The awareness rates of health knowledge in primary school students and residents were both more than 95%, and the popularization rates of harmless toilet and tap water were both more than 96%. Jinhu County reached the standard of schistosomiasis elimination in 2017. Conclusion Jinhu County had achieved the goal of eliminating schistosomiasis, but the potential epidemic factors still existed. It is necessary to formulate long-term monitoring and early warning mechanism.
李倩, 孙道宽. 2016—2020年金湖县血吸虫病疫情监测及防治效果评价[J]. 实用预防医学, 2022, 29(5): 574-577.
LI Qian, SUN Dao-kuan. Epidemic surveillance and control effect of schistosomiasis in Jinhu County, 2016-2020. , 2022, 29(5): 574-577.
2022, Vol. 29 
