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Table 1 Dilution ratio and the concentration (copies/ml) of SARS-CoV-2 pseudovirus RNA standards used in each assay

From: Analysis and validation of a highly sensitive one-step nested quantitative real-time polymerase chain reaction assay for specific detection of severe acute respiratory syndrome coronavirus 2

  qRT-PCR and OSN-qRT-PCR ddPCR
Dilution ratio Concentration (copies/ml) Dilution ratio Concentration (copies/ml)
S0 0 20,000 0 150,000
S1 5 4000 5 30,000
S2 10 2000 20 7500
S3 20 1000 100 1500
S4 40 500 300 500
S5 100 200 600 250
S6 200 100 1000 150
S7 400 50
S8 1000 20
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