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本文报告了８８例疟疾和１６７名非疟疾对照血清中疟疾间接荧光抗体（ＩＦＡ）的检测结果，疟疾病例ＩＦＡ阳性率为４７．７３％，非疟疾对照为５．９９％，有单采浆史疟疾为４４．９３％，有受血史疟疾为６９．２３％，既无单采浆史又无受血史疟疾为３３．３３％。疟疾病人抗体阳性率和几何平均倒数滴度（ＧＭＲＴ）与病后时间的长短、治疗的及时与否有关。在疟疾对照中，单采浆献血者ＩＦＡ阳性率为１５．６９％，极显著高于既无单采浆又无受血史人群（１．７２％）。证实了单采浆献血者是感染疟疾的危险人群。
This paper reports the detection results of malaria indirect fluorescent antibody (IFA) in 88 malaria and 167 non-malarial control sera. The positive rate of IFA in malaria cases is 47.73% and that of non-malarial controls is 5.99%. Malaria was 44.93%, with a history of 69.23% of malaria history. There was neither a history of single plasma acquisition nor a history of malaria of 33.33%. The malaria human antibody positive rate and geometric mean reciprocal titer (GMRT) are related to the length of time after the disease and the timeliness of treatment. In the malaria control, the positive rate of IFA in blood plasma donors was 15.69%, which was significantly higher than that of people without blood plasma and blood history (1.72%). It was confirmed that blood plasma donors are at risk of malaria.