Sensitivity of anti-SARS-CoV-2 serological assays in a high-prevalence setting.

Sensitivity of anti-SARS-CoV-2 serological assays in a high-prevalence setting.
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抗SARS-COV-2血清学测定的敏感性。

DOI:
10.1007/s10096-021-04169-7
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发表时间:
2021-05
期刊:
European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology
影响因子:
--
通讯作者:
Senff T
Senff T
中科院分区:
其他
文献类型:
--
作者:
Müller L;Ostermann PN;Walker A;Wienemann T;Mertens A;Adams O;Andree M;Hauka S;Lübke N;Keitel V;Drexler I;Di Cristanziano V;Hermsen DF;Kaiser R;Boege F;Klein F;Schaal H;Timm J;Senff T

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血清阳性率研究的评价和效力取决于所进行的血清学检测。本研究的目的是评估来自EUROIMMUN、DiaSorin、Abbott和Roche的四种商业血清学检测以及内部免疫荧光和中和检测在高流行率环境中识别SARS-CoV-2血清阳性个体的能力。因此,对德国超级传播者的42个社交和工作联系人进行了测试。与高流行率环境一致,42例中有26例通过中和试验(NT)呈SARS-CoV-2血清阳性,免疫荧光试验(IFT)证实了这26例阳性试验结果中的23例(NT 61.9%和IFT 54.8%血清阳性率)。四种商业检测方法在33.3-40.5%的个体中检测到抗SARS-CoV-2抗体。除了NT和商业检测试剂盒在灵敏度方面的总体差异外,本研究还显示,基于SARS-CoV-2加标的商业检测试剂盒比基于核蛋白的检测试剂盒更能预测中和滴度。在线版本包含补充材料,可通过10.1007/s10096-021-04169-7获得。
Evaluation and power of seroprevalence studies depend on the performed serological assays. The aim of this study was to assess four commercial serological tests from EUROIMMUN, DiaSorin, Abbott, and Roche as well as an in-house immunofluorescence and neutralization test for their capability to identify SARS-CoV-2 seropositive individuals in a high-prevalence setting. Therefore, 42 social and working contacts of a German super-spreader were tested. Consistent with a high-prevalence setting, 26 of 42 were SARS-CoV-2 seropositive by neutralization test (NT), and immunofluorescence test (IFT) confirmed 23 of these 26 positive test results (NT 61.9% and IFT 54.8% seroprevalence). Four commercial assays detected anti-SARS-CoV-2 antibodies in 33.3-40.5% individuals. Besides an overall discrepancy between the NT and the commercial assays regarding their sensitivity, this study revealed that commercial SARS-CoV-2 spike-based assays are better to predict the neutralization titer than nucleoprotein-based assays are. The online version contains supplementary material available at 10.1007/s10096-021-04169-7.
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