Dry Swab-Based Nucleic Acid Extraction vs. Spin Column-Based Nucleic Acid Extraction for COVID-19 RT-PCR Testing: A Comparative Study

Figure 2

Heat map demonstrating the Ct values for RNase P (internal control), E gene, and RdRp genes in samples tested by the spin column-based extraction method. The green color indicates no Ct values for that particular gene.