Table 1.

Analytical Sensitivity Comparison.

copies/mL*	TMA** reactivity	Taqpath RT-PCR reactivity†	CDC RT-PCR††
5.5 × 10e5	5/5 (100 %)	5/5 (100 %)	5/5 (100 %)
5.5 × 10e4	5/5 (100 %)	5/5*** (100%)	2/5 (40 %)
5.5 × 10e3	5/5 (100 %)	0/5 (0%)	0/5 (0%)
5.5 × 10e2	1/5 (20 %)	0/5 (0%)	0/5 (0%)
5.5 × 10e1	0/5 (0%)	0/5 (0%)	0/5 (0%)
5.5 × 10e0	0/5 (0%)	0/5 (0%)	0/5 (0%)

^*Concentration of SARS-CoV-2 genomic RNA, BEI Resources, NR-52285.

^**Hologic Panther SARS-CoV-2 Assay.

^†ThermoFisher Taqpath COVID-19 Multiplex Assay.

^††CDC 2019-nCoV Real-Time RT-PCR Diagnostic Panel.

^***Specimens were reactive for only one of three genes in assay.