Fig. 4: Antibody neutralization of SARS-CoV-2 variants.

Authentic SARS-CoV-2 neutralization for a panel of antibodies is shown against USA-WA1 and variants (Alpha, Beta, Gamma and Delta). Data represent the percent neutralization as mean ± s.d. The IC50 values calculated in GraphPad Prism software by four-parameter best-fit analysis are shown on the right.