Table 1.

Isothermal amplification assays for the detection of SARS-CoV-2.

Assay	Targeted gene	Detection limit	References
LAMP	N gene	60 copies/μL	(Deng et al., 2021)
TMA	N gene	5.5 copies/μL	(Gorzalski et al., 2020).
RT-RAA	ORF1ab gene	0.04 copies/μL	(Wang et al., 2020d)
MCDA	N gene	100 copies/μL	(Luu et al., 2021)
RPA	N gene and S gene	0.05 copies/μL	(Xia and Chen, 2020)
CHA	ORF1ab and N genes	2 copies/μL	(Zou et al., 2021)
NEAR	RdRp gene	0.125 copies/μL	(Khan et al., 2020)