Further, to confirm that the device can replicate and detect LMP1/COVID-19 N-gene in cell-extracted DNA/cDNA, HEK 293 cells containing recombinant HHV-4 strain M81 transduced with the COVID-19 N-gene were used to mimic HHV-4/SARS-CoV-2-infected cells. Here, PDLIM7 is linked to COVID-19.