Fig. 6From: Development and multi-center clinical trials of an up-converting phosphor technology-based point-of-care (UPT-POCT) assay for rapid COVID-19 diagnosis and prediction of protective effectsCorrelation between the total RBD-specific antibody levels and NAb titers in vaccinated individuals. (a) Results of linear correlation analysis. (b) Results of Spearman rank correlation analysis. Here, the left y-axis presents the T/C ratios reported by UPT-POCT, which are taken to indicate the total RBD-specific antibody level. The corresponding relation between -Log2(neutralizing titer) and neutralizing titer: 5 (1:32), 5.6 (1:48), 6 (1:64), 6.6 (1:96), 7.6 (1:192)Back to article page