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Fig. 4 | Virology Journal

Fig. 4

From: Excellent option for mass testing during the SARS-CoV-2 pandemic: painless self-collection and direct RT-qPCR

Fig. 4

Comparison of unnormalised Ct values calculated for two-step RT-qPCR and direct RT-qPCR detection of the SARS-CoV-2 virus in all samples found to be positive by both nasopharyngeal and nasal swabs. a The linear regression analysis for the Ct detected for paired samples in both SARS-CoV-2 RT-qPCR methods. The x-axis shows the Ct values obtained by direct RT-qPCR, and the y-axis shows the values for the paired samples analysed by two-step RT-qPCR. b The distance between the Ct values from the two-step RT-qPCR (blue dot) and paired direct RT-qPCR (orange dot) represents the rate of Ct discordance between the techniques for an individual study subject

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Virology Journal

ISSN: 1743-422X