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. 2021 Feb 24;16(2):e0240524. doi: 10.1371/journal.pone.0240524

Table 1. Clinical evaluation of DP-RT-LAMP assay and comparable PCR assay.

Sample LAMP Tt (min) GPDx CoViDx One PCR Ct
CoV2-W3 RNase P Result RdRP N R RNase P Result
1 32.7 24.0 Positive 33.13 35.78 33.26 29.15 Low Positive
2 10.9 18.0 Positive 25.56 27.45 25.25 28.21 Positive
3 41.5 16.2 Positive 30.99 34.24 31.65 25.55 Positive
4 12.4 16.5 Positive 30.85 32.75 31.31 29.81 Positive
5 11.0 16.9 Positive 29.62 31.84 29.72 29.82 Positive
6 16.7 17.7 Positive 31.49 33.73 32.18 31.14 Positive
7 12.7 14.7 Positive 30.6 32.12 30.99 29.25 Positive
8 23.7 15.0 Positive 32.65 35.73 33.31 29.5 Low Positive
9 10.3 15.6 Positive 25.67 27.71 25.75 28.99 Positive
10 13.0 16.7 Positive 31.94 34.87 32.9 27.35 Positive
11 9.0 29.0 Positive 23.77 25.29 23.62 27.51 Positive

LAMP assay: Swab elution in 200 μL buffer. 5 μL input in 25 μL reaction

PCR assay: With RNA extraction (200 μL VTM input, elution volume of 35 μL), 5 μL Input 15 μL reaction.