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首页> 外文期刊>The American Journal of Tropical Medicine and Hygiene >Two Generations of 'Gold Standards': The Impact of a Decade in Hepatitis E Virus Testing Innovation on Population Seroprevalence
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Two Generations of 'Gold Standards': The Impact of a Decade in Hepatitis E Virus Testing Innovation on Population Seroprevalence

机译:两代“金标准”:戊型肝炎病毒检测创新十年对人群血清阳性率的影响

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Hepatitis E virus (HEV) is a global pathogen responsible for approximately 20 million infections every year in developing countries, yet remains under-recognized. In this population-based cohort study, 1,025 randomly selected participants were enrolled from Matlab, Bangladesh (2004-2005). All participants were tested for HEV antibodies and total immunoglobulin (Ig), using an in-house enzyme immunoassay developed by Walter Reed Army Institute of Research (WRAIR). In 2014, we retested the banked sera of 1,009 of those participants using the Wantai anti-REV IgG enzyme-linked immunosorbent assay (ELISA). The WRAIR assay estimated the overall population seroprevalence as 26.6% (95% confidence interval [CI]: 24.0, 29.5), whereas the Wantai assay produced significantly higher estimated seroprevalence, 46.7% (95% CI: 43.5-49.8) (P < 0.001). However, the two tests give nearly identical findings in those 5 years and under (N = 94) with a 98% agreement between the tests. Retesting populations with modern assays is necessary to establish better population-level estimates of disease burden.
机译:戊型肝炎病毒(HEV)是一种全球病原体,每年在发展中国家造成大约2000万例感染,但仍未被充分认识。在这项基于人群的队列研究中,从孟加拉国Matlab(2004-2005年)招募了1,025名随机选择的参与者。使用Walter Reed Army Institute of Research(WRAIR)开发的内部酶免疫测定法,对所有参与者进行了HEV抗体和总免疫球蛋白(Ig)的测试。 2014年,我们使用万代抗REV IgG酶联免疫吸附测定(ELISA)重新测试了1,009名参与者的血清。 WRAIR分析估计总体人群血清阳性率为26.6%(95%置信区间[CI]:24.0,29.5),而万代分析产生的估计血清阳性率显着更高,为46.7%(95%CI:43.5-49.8)(P <0.001 )。但是,这两个测试在5年内(N = 94)下得出的结果几乎相同,两次测试之间的一致性为98%。为了建立更好的人群水平疾病负担估算,必须使用现代检测方法对人群进行重新测试。

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