Validation of a One-Step Reverse Transcription-Droplet Digital PCR (RT-ddPCR) Approach to Detect and Quantify SARS-CoV-2 RNA in Nasopharyngeal Swabs

Table 4

Accuracy of SARS-CoV-2 detection by RT-ddPCR using the E gene assay.

Analyte (%)	Mean (copies)	SD (copies)	CV%
0.1	238.6	24.3	10.2
0.04	87.9	14.9	16.9
0.02	42.4	7.4	17.3
0.01	26.8	6.5	24.4