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目的探索和评价血吸虫病传播阻断有螺地区人群传染源监测方法,并对所产生的费用进行评估。方法2010-2014年采用主动监测和被动监测两种方法,连续观察人群病情变化情况,评估两种监测方法的费用。结果2010-2014年全市累计血检49 277人,发现阳性608例,血检阳性率为1.23%,未检出病原学阳性病例。主动监测和被动监测血检阳性率分别为1.61%、1.13%,差异有统计学意义(χ2=15.982,P<0.05)。在不考虑组织动员和人工费用的前提下,每查治1例血检阳性者的平均费用,被动监测低于主动监测。结论作为血吸虫病传播阻断有螺无病地区,在今后传染源监测工作中应采取主动监测与被动监测相结合的方式。
Objective To explore and evaluate the method of monitoring the transmission of schistosomiasis and preventing the transmission of infectious agents in snail population and evaluate the costs incurred. Methods Two methods, active monitoring and passive monitoring, were used during 2010-2014 to continuously observe the changes of the population and assess the costs of the two monitoring methods. Results In 2010-2014, a total of 49 277 blood tests were carried out in the city, 608 were positive and the positive rate was 1.23%. No positive cases were detected. The positive rates of active surveillance and passive surveillance were 1.61% and 1.13% respectively, with significant difference (χ2 = 15.982, P <0.05). Regardless of the mobilization of organizations and labor costs, under the premise of each check a blood test-positive average cost of passive monitoring is lower than the active monitoring. Conclusions As the transmission of schistosomiasis has snail disease-free areas, the combination of active surveillance and passive surveillance should be adopted in the future monitoring of infection sources.