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本文报告了原间日疟流行区徐州市两个监测点居民和１５岁以下儿童用ＩＦＡ试验进行１７年疟疾抗体调查的结果。疟疾年带虫发病率与人群疟疾抗体阳性率呈正相关（ｒ＝０．７０，Ｐ＜Ｏ．０１），流动人口疟疾抗体阳性率和当地居民疟疾抗体阳性率有显著的差异（Ｕ＝１１．８７，Ｐ＜０，０１）。自１９８６年基本消灭疟疾后，每年流行季节末朝人群抗体阳性率为０．０３％～４．２６％，儿童抗体阳性率为０～３．５％。显示疟疾传播已得到有效控制。１９８５～１９９３年每年疟疾流行季节儿童疟疾抗体阳性发生率都很低．而其恢复率较高。表明，ＩＦＡ试验可用于监测疟疾的流行态势和评价抗疟措施的效果．
This article reports the results of a 17-year malaria antibody survey conducted by inhabitants of two monitoring sites and children under 15 years of age in the endemic area of Vivax malaria, using the IFA test. There was a positive correlation between the incidence of malaria and the positive rate of malaria in the population (r = 0.70, P <0.01). The positive rate of malaria antibody in migrant population was significantly different from that of the local malaria antibody (U = 11). 87, P <0,01). Since the malaria elimination was basically completed in 1986, the prevalence of antibody at the end of the annual epidemic season was 0.03% -4.26% and that of children was 0-3.5%. This shows that the spread of malaria has been effectively controlled. Between 1985 and 1993, the annual incidence of malaria antibodies in malaria-endemic seasons was very low. The recovery rate is higher. This shows that the IFA test can be used to monitor the prevalence of malaria and to evaluate the effectiveness of antimalarial measures.