Fig. 2: Longitudinal analysis of serum protection against SARS-CoV-2 infection.
From: Protective humoral and cellular immune responses to SARS-CoV-2 persist up to 1 year after recovery
Serum collected from multiple time points were tested against alive SARS-CoV-2 virus infection. a Microneutralization assay was performed using an alive SARS-CoV-2 infection cell culture system. y-axis, serum dilution folds. Data were presented as mean value ± SEM. Colored dots represent disease severity. Mild (blank dots), moderate (blue dots), and severe (red dots) symptoms. An unpaired t-test with Welch’s correction analysis was applied, and p values (two-tailed) were labeled. b Correlation of microneutralization (dilution folds) and RBD-IgG (arbitrary unit, AU/ml). A total of 475 pairs were analyzed, and Pearson r and p value (two-tailed) were shown. Lines in x-axis and y-axis in a and b indicate the cut-off values. Source data are provided as a Source Data file.
