Table 2.

Number of Moderate-Severe Colds (Peak Score ≥7) at Each Dosing Level

Dose (TCID50/mL)	Peak Scores <7	Peak Scores ≥7	Excluded From Analysisa
0 (placebo)	10 (100%)	0 (0%)	0
100	5 (56%)	4 (44%)	1
500	2 (50%)	2 (50%)	2
1000	1 (12.5%)	7 (87.5%)	2

Abbreviations: TCID₅₀, median tissue culture infectious dose.

^aSubjects who had community-acquired viruses detected in nasal secretions during the acute cold phase were excluded from the analysis.