Figure 1 ELISA test of chicken anti- COVID-19 spike S1 protein.
Antibodies: SARS-CoV-2 (COVID-19, 2019-nCoV) Spike (S1) antibody (at dilutions from 1 in 500 to 1 in 64,000). A direct ELISA was performed using purified COVID-19 Spike protein (S1) as coating antigen and the anti-SARS-CoV-2 (COVID-19, 2019-nCoV) Spike (S1) antibody as the primary antibody. Secondary: Rabbit anti-chicken IgY Fc HRP conjugate at 65ng/ml. Preimmune sera gave signals of approximately 0.110 or less at all comparable dilutions.
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