Table 1.

Comparison of the detection of SARS-CoV-2 and PMMoV by different sampling methods in the bench-scale study.

	Sample Type	N1 Ct, Mean	N2 Ct, Mean	PMMoV, Ct
Sample 1	100 mL wastewater	28.05	28.5	19.47
	Tampon, no stirring	29.47	29.5	20.83
	Tampon, stirring	29.91	29.29	20.63
	Gauze, no stirring	31.15	31.15	21.54
	Gauze, stirring	31.5	31.35	21.79
Sample 2	100 mL wastewater	27.2	27.32	19.41
	Tampon, no stirring	29.81	29.68	20.79
	Tampon, stirring	29.18	28.75	20.74
	Gauze, no stirring	31.02	31.19	22
	Gauze, stirring	30.93	30.26	21.72

PMMoV: Pepper mild mottle virus.