a. Dose-response neutralization of SARS-CoV-2 luciferase reporter virus by representative potently neutralizing mAbs that were identified by rapid RTCA screening assay. IC50 values are indicated for each mAb. Data shown are the mean of two technical replicates from one of two independent experiments, and error bars denote the standard deviation for each point.
b. Neutralization of SARS-CoV-luciferase reporter virus by cross-reactive mAbs COV2-2678 and COV2-2514. IC50 values are indicated for each mAb, with “-” indicating mAbs that did not neutralize SARS-CoV. Data shown are the mean ± SD of two technical replicates from one of two independent experiments.