Figure 1
From: SARS-CoV-2 enzyme-linked immunosorbent assays as proxies for plaque reduction neutralisation tests
PRNT80 by IgG S1-RBD ratio to calibrator (A); IgM S1-RBD ratio to calibrator (B); IgG S2 + NP NOD450 (C); and IgM S2 + NP OD450 (D). Median values are indicated by the red horizontal bars. The cut-off used to determine a positive sample by each ELISA is indicated by the dashed horizontal line.
