双抗原夹心法ELISA在检测抗肾综合征出血热总抗体中的应用

目的建立可以检测不同来源血清中抗汉坦病毒抗体的简单、灵敏的方法。方法汉坦病毒核蛋白重组表达纯化后，同时作为捕获作用的固相抗原和检测作用酶标记抗原，建立检测血清中抗汉坦病毒总抗体的双抗原夹心法ELISA法，并与常用的IFA法进行比较分析。结果检测不同血清时特异性为100％，敏感性高于IFA法4～8倍。且不需考虑更换检测试剂，不同来源的血清样本对检测结果没有明显的影响。结论本方法操作简单，成本低，具有较高的敏感性和特异性，适合用于汉坦病毒感染的监测、调查和临床诊断以及宿主动物间病毒感染流行的调查与监测。

Development and evaluation of a double antigen sandwich ELISA for the detection of total antibodies against hemorrhagic fever with renal syndrome virus

OBJECTIVES: To develop and evaluate a method for detection of the total antibodies against hemorrhagic fever with renal syndrome (HFRS) virus with improved sensitivity and simplified operation procedure. METHODS: The nucleic proteins of hantavirus were used as coating antigens as well as detection antigens labeled with horse radish peroxidase (HRP). The operation protocol was established, optimized and compared with indirect fluorescence assay (IFA). RESULTS: The specificity of this method was 100 percent in the test of different human sera and 4-8 times more sensitive than IFA. And, it is simpler without requiring any change of the reagents, different sources of samples did not affect the results of the test. CONCLUSION: This method is specific, sensitive and simple for detection of the total antibodies in sera against hantavirus, could be used for the screening of Hantavirus infection in human and host rodent animals.