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. 2021 Jan 28;117:105002. doi: 10.1016/j.idairyj.2021.105002

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Fig. 4 — Competitive inhibition ELISA of the bovine IgG enriched fraction (IgG 0.3 μg mL⁻¹), incubated with one of three peptides of S protein of SARS-CoV-2 (, aa 382–401; , aa 427–446; , aa 502–520) at concentrations 0.001, 0.01, 0,1, 1, and 10 μg mL⁻¹, the remaining free IgG against the S protein of SARS-CoV-2 was assayed by direct ELISA, using plates coated with the peptide corresponding to aa 288–512 of S protein of SARS-CoV-2. Two lots of bovine IgG enriched fraction prepared in 2019 () and 2018 () were tested.

Competitive inhibition ELISA of the bovine IgG enriched fraction (IgG 0.3 μg mL⁻¹), incubated with one of three peptides of S protein of SARS-CoV-2 (, aa 382–401; , aa 427–446; , aa 502–520) at concentrations 0.001, 0.01, 0,1, 1, and 10 μg mL⁻¹, the remaining free IgG against the S protein of SARS-CoV-2 was assayed by direct ELISA, using plates coated with the peptide corresponding to aa 288–512 of S protein of SARS-CoV-2. Two lots of bovine IgG enriched fraction prepared in 2019 () and 2018 () were tested.