Figure 2 Correlation between neutralization antibody titers and
IgG titers by ELISA. Anti-SARS-CoV-2 S IgG was determined using ELISA
and neutralization antibody titers were determined by pseudovirus-based
neutralization assay. A line of best fit was estimated by linear
regression using log-transformed values for the IgG titers and
neutralizaiton antibody titers. A. The correlation analysis
between IgG titers against S protein of SARS-Cov-2 prototype and
neutralization antibody titers against pseutyped SARS-Cov-2 prototype.B. The correlation analysis between IgG titers against S
protein of SARS-Cov-2 Omicron BA.1 and neutralization antibody titers
against pseutyped SARS-Cov-2 Omicron BA.1. C. The correlation
analysis between IgG titers against S protein of SARS-Cov-2 Omicron BA.5
and neutralization antibody titers against pseutyped SARS-Cov-2 Omicron
BA.5.rs , Spearman rank-order
correlation coefficient.
Table 1 Agreement between IgG titers by ELISA and
neutralization titers using pseudotyped SARS CoV-2 variants in 88 sera
samples immunized with three doses of COVID-19-inactivated vaccine