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. 2021 Jul 14;166(9):2551–2561. doi: 10.1007/s00705-021-05148-1

Table 10.

Results of EZ-SARS-CoV-2 RT-PCR with pool size of 5 on the QuantStudio 5 platform for validation

Pool Specimen Individual Ct value Pooled Ct valuea Ct change
1 NP 32.96 35.04 2.08
2 NP 35.42 36.96 1.53
3 NP 32.65 35.04 2.39
4 NP 34.67 36.62 1.95
5 NP 33.11 36.97 3.86
6 NP 33.41 35.46 2.05
7 NP 34.74 36.84 2.11
8 NP 37.15 38.41 1.26
9 NP 35.13 37.04 1.91
10 NP 35.72 38.29 2.57
Average (standard deviation) of Ct change 2.17 (0.70)
 11 NP 33.00 33.88 0.88
 12 NP 31.60 31.67 0.08
 13 NP 35.53 32.24 − 3.29
 14 NP 34.79 36.05 1.26
15 NP 34.12 36.24 2.12
 16 NP 32.28 33.53 1.25
 17 NP 32.24 31.48 − 0.76
 18 NP 28.76 30.35 1.59
 19 NP 30.87 33.00 2.12
 20 NP 32.36 34.82 2.46
Average (standard deviation) of Ct change 0.77 (1.73)
 21 ANb 19.02 17.98 − 1.04
 22 AN 19.86 18.73 − 1.13
 23 AN 28.50 26.97 − 1.53
 24 AN 31.64 38.44 6.80
 25 AN 31.75 35.01 3.26
 26 AN 32.96 37.95 4.99
 27 AN 33.33 Not detected
 28 AN 25.50 29.92 4.42
 29 AN 34.00 36.82 2.82
 30 AN 22.00 24.89 2.89
 31 AN 23.75 25.98 2.23
 32 AN 32.25 34.53 2.28
Average (standard deviation) of Ct change: 2.36 (2.67)

aAverage Ct value from three independent extraction and RT-PCR runs

bAN specimens and individual Ct values were kindly provided by the Wadsworth Center, NYS Department of Health. There was not enough volume for both individual and pooled extractions.