【摘要】 本文报道了应用日本血吸虫肠相关抗原的间接血凝试验(IHA),对一个现存的和两个已经基本控制传播的血吸虫病流行区人群进行血清流行病学的调查结果。发现现存的流行区的人群抗体水平较其他两个地区明显为高。而且三个地区人群抗体阳性者的抗体滴度平均水平(GMRT)的年龄分布曲线也具不同的特征,现存流行区的低年龄组GMRT较高年龄组为高,而已经控制传播的地区低年龄组抗体水平则为0。认为分析当地低年龄组人群抗体水平,似可作为评价传播是否阻断的依据,并可作为监测流行趋势的工具。更多还原

【Abstract】 A study on seroepidemiology of schistosomiasis japonica was performed by means; of IHA test with a gut-associated antigen of the adult worms among populations in one actually endemic area and two previously endemic, but now controlled areas of the infection. To explore the relationship between the age distribution of antibody response and the transmission of schistosomiasis in populations living in these areas with different endemicity, the graphic distribution curves of antibody levels according to age grouping were drawn. The age distribution curves of antibody levels in populations studied showed different patterns. It was suggested that in a given area, the level of antibody response of individuals in the youngest or younger age group could more likely reflect transmission in recent time and the analysis of antibody level of low age groups could provide a basis for evaluating whether the transmission had been interrupted or not.更多还原