Volume 26, Number 7—July 2020
Research Letter
Triplex Real-Time RT-PCR for Severe Acute Respiratory Syndrome Coronavirus 2
Table
Comparison of cycle threshold results for 27 clinical samples tested in triplex real-time reverse transcription PCR and singleplex PCR for severe acute respiratory syndrome coronavirus 2
Sample | Triplex real-time reverse transcription PCR |
Singleplex reactions |
||||
---|---|---|---|---|---|---|
N2 target | E target | RNase P | N2 target | E target | ||
No template control | ND | ND | ND | ND | ND | |
Positive control, RNA† | 29.9 | 32.0 | ND | 30.7 | 33.0 | |
CoV 01 | 19.0 | 23.1 | 21.0 | 19.2 | 23.1 | |
CoV 02 | ND | ND | 22.1 | ND | ND | |
CoV 03 | ND | ND | 22.0 | ND | ND | |
CoV 04 | ND | ND | 21.9 | ND | ND | |
CoV 05 | ND | ND | 22.4 | ND | ND | |
CoV 06 | ND | ND | 21.4 | ND | ND | |
CoV 07 | ND | ND | 21.6 | ND | ND | |
CoV 08 | 26.1 | 28.0 | 25.5 | 26.1 | 27.7 | |
CoV 09 | 20.1 | 22.0 | 22.5 | 20.3 | 22.2 | |
CoV 10 | ND | ND | 21.1 | ND | ND | |
CoV 11 | ND | ND | 22.0 | ND | ND | |
CoV 12 | ND | ND | 20.5 | ND | ND | |
CoV 13 | ND | ND | 20.9 | ND | ND | |
CoV 14 | ND | ND | 24.6 | ND | ND | |
CoV 15 | ND | ND | 28.7 | ND | ND | |
CoV 16 | 14.6 | 16.3 | 22.0 | 14.9 | 16.5 | |
CoV 17 | ND | ND | 27.6 | 44.8 | ND | |
CoV 18 | 33.1 | 35.7 | 22.5 | 31.0 | 32.9 | |
CoV 19 | ND | ND | 28.2 | ND | ND | |
CoV 20 | 18.6 | 21.3 | 22.5 | 18.9 | 21.5 | |
CoV 21 | 33.4 | 34.2 | 25.1 | 30.6 | 33.2 | |
CoV 22 | ND | ND | 21.1 | ND | ND | |
CoV 23 | 28.9 | 31.3 | 21.3 | 28.2 | 30.4 | |
CoV 24 | 30.0 | 33.4 | 21.6 | 29.1 | 31.6 | |
CoV 25 | 9.8 | 13.2 | 20.6 | 9.8 | 13.1 | |
CoV 26 | ND | ND | 21.5 | ND | ND | |
CoV 27 | ND | ND | 24.6 | ND | ND |
*CoV, coronavirus; E, envelope gene; N2, nucleocapsid 2 gene; ND, not detected; RNase P, ribonuclease P.
†Strain BetaCoV/Germany/BavPat1/2020p.1.
Page created: April 15, 2020
Page updated: June 18, 2020
Page reviewed: June 18, 2020
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