免疫酶染IgM检测法早期诊断流行性出血热的研究

本实验重点以免疫酶染检测了37例临床确诊EHF患者双份血清中的IgM抗体并与IFA—IgG抗体法进行了对比,所查37例EHF患者中2例早晚期血清免疫酶染IgM及FA—IgG抗体均为阳性,其余35例早期血清IgM抗体阳性检出率明显高于IFA—IgG法;晚期血清二种方法阳性检出率及阳性检出符合率为100%。阻断试验及2—ME耐性试验显示免疫酶染法检出的抗体系特异性IgM;该抗体可在发病第二日出现,整个病程均能检出。实验结果表明,免疫酶染IgM抗体技术敏感性高,特异性强,仅需要光学显微镜,观察清晰,便于基层人员使用。

A STUDY ON INDIRECT PEROXIDASE ANTIBODY TEST OF DETECTING IgM ANTIBODIES TO EPIDEMIC HEMORRHAGIC FEVER

The immunoporoxidase staining technics (IPST) was used in 37 patients with epidemic hemorrhagic fever (EHF) for detecting the specific IgM antibodies to EHF and compared with the method of IFA-IgG. The sera obtained at the early stage of the disease were ana- lyzed. In two cases, the results were negative by using the method of IPA-IgM antibodies. In 35 cases, the results were significantly higher than those by means of the method of IFA-IgG. But, the sera obtained at the late stage showed no difference between the two methods. The inhibition test and 2-ME tolerance tcst showed that the antibodics detected by the IPST technics were specific IgM ones, which could be found in the patient's serum on the second day of onset. The results showed that the IPA-IgM method is sensitive and highspecific and the results can be read under the light microscope. Thus, this method is convenient for the country doctors to use.