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一种用于检测河口样本中甲型肝炎病毒的A-酶联免疫吸附测定法。

An A-ELISA to detect hepatitis A virus in estuarine samples.

作者信息

Nasser A M, Metcalf T G

出版信息

Appl Environ Microbiol. 1987 May;53(5):1192-5. doi: 10.1128/aem.53.5.1192-1195.1987.

Abstract

An amplified enzyme-linked immunosorbent assay (A-ELISA) for detecting and quantifying hepatitis A virus in estuarine water samples is described. The test was five times more sensitive than a standard ELISA and at least two times more sensitive than radioimmunoassay. Test sensitivity was unaffected by the procedures used to concentrate the virus in estuarine samples or by the presence of humic and tannic acids in test samples. Nonspecific reactions were not encountered with a number of enteroviruses or with a rotavirus. A high sensitivity and specificity combined with speed, low cost, and freedom from radiolabels made the A-ELISA useful for detecting hepatitis A virus in environmental samples. The virus was detected in 3 of 20 estuarine water samples examined by A-ELISA.

摘要

本文描述了一种用于检测和定量河口水样中甲型肝炎病毒的扩增酶联免疫吸附测定法(A-ELISA)。该检测方法的灵敏度比标准ELISA高五倍,比放射免疫测定法至少高两倍。检测灵敏度不受用于浓缩河口样本中病毒的程序影响,也不受检测样本中腐殖酸和单宁酸的影响。多种肠道病毒和轮状病毒均未出现非特异性反应。高灵敏度、高特异性,再加上速度快、成本低且无需使用放射性标记,使得A-ELISA可用于检测环境样本中的甲型肝炎病毒。在通过A-ELISA检测的20份河口水样中,有3份检测出了该病毒。

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