Fig. 1.

Quantitative suspension test of commercially available mouthrinses. (A) Product A and (B) Product B of different compositions (white bars) or medium (grey bar) were incubated with SARS-CoV-2 and an interfering substance for 30 s. Viral titers were obtained by end point dilution on Vero E6 cells. Cytotoxicity is indicated as lower limit of quantification (LLOQ, dotted line). 50% tissue culture infectious dose (TCID₅₀/mL) was calculated according to Spearman and Kärber. Data are represented as mean ± SD of three independent experiments.