Table 1.

Virucidal activity of PVP-I gargle/mouthwash against SARS-CoV-2 (data are presented as log10 reduction in viral titres with respect to control)

PVP-I concentration	Log10 reduction in viral titres
	Clean conditions*			Dirty conditions**
	15 secs	30 secs	60 secs	15 secs	30 secs	60 secs
Undiluted	>5.00	>5.00	>5.00	>5.00	>5.00	>5.00
1:2 dilution	>4.00	>5.00	>5.00	>4.00	>5.00	>5.00
Key: * = clean conditions: 0.3 g/l bovine serum albumin ** = dirty conditions: 3.0 g/l bovine serum albumin + 3 ml/l human erythrocytes