Fig. 4: Correlation between the SONIA neutralization test and VNT titers. | Nature Communications

Fig. 4: Correlation between the SONIA neutralization test and VNT titers.

From: Detection of neutralizing antibodies against multiple SARS-CoV-2 strains in dried blood spots using cell-free PCR

Fig. 4: Correlation between the SONIA neutralization test and VNT titers.

The SONIA neutralization PCR test signals were averaged for samples with the same PRNT titers and plotted on the y-axis. Considering the PCR signals were logarithmic in nature, the VNT titers were log-transformed and plotted on the x-axis. The VNT was performed by the Mayo Clinic. The y-axis is the SONIA neutralization PCR test signal Δ\(\overline{{Ct}}\) calculated by subtracting the Ct value of the sample from that of a buffer only blank control.

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