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. 2020 Nov 20;27(3):470.e1–470.e9. doi: 10.1016/j.cmi.2020.11.009

Fig. 2.

Fig. 2

A comparison of test performance between the six serological IgG assays in 600 participants for whom all six assays were performed. (a) Upset plot of all antibody-positive participants and (b) Upset plot of previously SARS-CoV-2 PCR-positive participants. Abbreviations: SN.2019-nCoV IgG kit (Snibe Co., Ltd., Shenzhen, China); EU..SARS-COV-2 IgG ELISA kit (Euroimmun, Lübeck, Germany); DS..SARS-CoV-2 S1/S2 IgG CLIA kit (DiaSorin, Saluggia, Italy); ED..EDI Novel Coronavirus SARS-CoV-2 IgG ELISA kit (Epitope Diagnostics Inc., San Diego, USA).