ELISA
SARS-CoV-2 Spike Antibody tested by ELISA. SARS-CoV-2 Spike RBD protein was coated onto microtiter plates at 0.5 ug/mL and then incubated with a dilution series of SARS-CoV-2 Spike Antibody . Bound antibodies were detected with anti-human IgG conjugated to horseradish peroxidase (HRP) followed by incubation with HRP Substrate and then measuring the resulting absorbance at 450 nm.