ddPCR: a more accurate tool for SARS-CoV-2 detection in low viral load specimens
Detection Principle
NucleicAcid-PCR based
Target
ORF1ab, N
Testing Method Category
Testing Method
ddPCR vs RT-PCR
Testing Method - Additional Info
Chinese CDC
Reported Performance
Sensitivity: 40% (RT-PCR), 94% (ddPCR); Specificity: 100% (RT-PCR, ddPCR); PPV: 100% (RT-PCR, ddPCR); NPV: 16% (RT-PCR), 63% (ddPCR); accuracy: 47% (RT-PCR), 95% (ddPCR)
Sample Size
77 patients
Peer-reviewed
yes
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