| Effect | None |
| Trial Design | Double blind |
| Trial Length | n/a |
| Number of Subjects | 407 |
| Sex | n/a |
When assessing the effects of 4 months of echinacea usage in children, there was no observable preventative effect on the common cold
| Effect | None |
| Trial Design | Double blind |
| Trial Length | n/a |
| Number of Subjects | 407 |
| Sex | n/a |
When assessing the effects of 4 months of echinacea usage in children, there was no observable preventative effect on the common cold