Table 1.

Survival rates of the HCoV 229E and the poliovirus, type 1, under different conditions of temperature and humidity [104].

	HCoV 229E						Type 1-Poliovirus, Sabin strain
Relative humidity	20 °C				6 °C		20 °C		6 °C
	15 min	24 h	72 h	6 days	15 min	24 h	15 min	24 h	15 min	24 h
30%	87%	65%	>50%	n.d.	91%	65%	0%	0%	n.d.	n.d.
50%	90.9%	75%	>50%	20%	96.5%	80%	0%	0%	n.d.	n.d.
80%	55%	3%	0%	n.d.	104.8%	86%	90%	30%	n.d.	n.d.

(n.d.: not done)