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. 2020 Jun 15;129:104512. doi: 10.1016/j.jcv.2020.104512

Fig. 1.

Fig. 1

Comparison of microneutralisation test (MNT) and immunoassay results, and onset of illness. A) Abbott SARS-CoV-2 IgG assay (index); n = 70. B) Euroimmun SARS-CoV-2 IgA (ratio), n = 70. C) Euroimmun SARS-CoV-2 IgG (ratio), n = 70, D) Liaison SARS-CoV-2 IgG (RUO) (AU/mL), n = 62. E) Microneutralisation titers for 63 serum samples collected from 55 COVID-19 patients, organized according to the time lapse between the onset of symptoms and the sample collection. The geometric mean is marked for each titer with a solid line and immunoassay cut-off values are indicated with a dotted line.