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目的了解三峡库区社会经济因素变化对血吸虫病传播的影响。方法采用流行病学、免疫学和社会医学相结合的方法,调查三峡库区流动人口、库区移民、家畜血吸虫病传染源和钉螺输入库区的潜在危险因素,以及建坝后社会经济发展变化对血吸虫病传播的潜在影响因素。结果三峡库区存在从血吸虫病疫区引进花草树木和牲畜,存在将钉螺和动物传染源带入库区的可能;流动人口中有31.43%曾患过血吸虫病,37.27%曾接触疫水,1.18%查出血吸虫病抗体阳性,流动人口将成为库区血吸虫病的主要传染源;库区的4大经济产业中,畜牧业、水产养殖业和旅游业均有可能造成传染源的输入。结论三峡库区社会经济发展变化将使库区成为血吸虫病的潜在流行区,应加强监测。
Objective To understand the influence of socio-economic factors on the spread of schistosomiasis in Three Gorges Reservoir Area. Methods The epidemiological, immunological and socio-medical methods were used to investigate the potential risk factors of floating population in the Three Gorges Reservoir area, immigrants in the reservoir area, sources of schistosomiasis infection and snail feeding into the reservoir area and the socio-economic development after dam construction Potential influencing factors of schistosomiasis transmission. Results There was the possibility of introduction of flowers, trees and livestock from the schistosomiasis-endemic area in the Three Gorges Reservoir area, which brought snail and animal infection sources into the reservoir area. Among the floating population, 31.43% had schistosomiasis, 37.27% It was found that the schistosomiasis antibody was positive and the floating population would become the main source of schistosomiasis infection in the reservoir area. Among the four major economic industries in the reservoir area, animal husbandry, aquaculture and tourism may all cause the import of infectious agents. Conclusion The socio-economic development in the Three Gorges Reservoir Area will make the reservoir area become a potential epidemic area for schistosomiasis, and monitoring should be strengthened.