Table 1. Summary of results.

Virus	Temperature	Surface	log10 after 15 minutes	log10 after 1 hour	log10 after 6 hours	log10 after 12 hours	log10 after 24 hours	log10 after 36 hours	No virus detection	Half-life
PRRSV 1-4-4 L1C Variant	20°C	Aluminum	3.50 bc	3.94 c	3.25 ab	3.33 bc	2.58a	2.58a	Virus detected	63 hr
	30°C		3.50 c	2.83 bc	2.47b	0.00 a	0.00 a	0.00 a	12 hours	2 hr
	40°C		4.08 c	2.58 b	0.00 a	0.00 a	0.00 a	0.00 a	6 hours	4 hr
	50°C		0.00 a	0.00 a	0.00 a	0.00 a	0.00 a	0.00 a	15 minutes	0 min
	20°C	Cardboard	3.17b	2.81b	0.50 a	1.83 ab	1.58 ab	0.42 a	Virus detected	18 hr
	30°C		3.08 b	1.42 a	0.00 a	0.00 a	0.00 a	0.00 a	6 hours	5 hr
	40°C		2.00 a	1.33 a	0.00 a	0.00 a	0.00 a	0.00 a	6 hours	47 min
	50°C		3.33 b	1.17 a	0.00 a	0.00 a	0.00 a	0.00 a	6 hours	47 min
PRRSV MN 184	20°C	Aluminum	4.50 b	4.33 b	3.64 ab	3.25 a	3.25 a	3.17 a	Virus detected	76 hr
	30°C		4.25 c	3.58 c	2.92 bc	1.42 ab	0.33 a	0.00 a	36 hours	50 min
	40°C		4.25 c	3.65 c	2.06 b	1.42 a	0.00 a	0.00 a	24 hours	16 min
	50°C		3.92 c	1.83 b	0.00 a	0.00 a	0.00 a	0.00 a	6 hours	21 min
	20°C	Cardboard	3.75 c	3.58 bc	2.83 ab	3.08 abc	2.67 a	2.67 a	Virus detected	81 hr
	30°C		4.17 b	3.75 b	2.92 b	0.92 a	2.67 a	0.00 a	36 hours	50 min
	40°C		4.75 c	3.82 c	2.72 b	0.00 a	0.00 a	0.00 a	12 hours	20 min
	50°C		3.81 c	3.83 c	2.83 bc	0.00 a	0.00 a	0.00 a	12 hours	16 min
PEDV	20°C	Aluminum	5.50 c	4.83 c	3.92 bc	3.00 b	2.67 b	0.83 a	Virus detected	15 hr
	30°C		3.58 c	2.17 b	0.00 a	0.00 a	0.00 a	0.00 a	6 hours	47 min
	40°C		2.83 b	2.75 b	0.00 a	0.00 a	0.00 a	0.00 a	6 hours	46 min
	50°C		0.00 a	0.00 a	0.00 a	0.00 a	0.00 a	0.00 a	15 minutes	0 min
	20°C	Cardboard	4.58 b	4.58 b	3.83 b	1.83 a	1.92 a	1.83 a	Virus detected	25 hr 30 min
	30°C		3.50 b	2.31 b	0.58 a	0.00 a	0.00 a	0.00 a	12 hours	36 min
	40°C		3.33 c	2.75 bc	1.00 ab	0.00 a	0.00 a	0.00 a	12 hours	52 min
	50°C		3.42 c	1.58 b	0.50 ab	0.00 a	0.00 a	0.00 a	12 hours	36 min

Summary of the marginal means of the log₁₀TCID₅₀/ml values for each virus, surface and holding-time, and summary of the time to virus detection.