can you link to where you've read this. I've NEVER heard this. I've said this on the other post but the best source of elderberry to take is juice concentrate over the extract....in the extract they take out SOME of the benefits of elderberry but the concentrate has them all in it. It's best to take the concentrate for full benefit! Your baby can take it too if he's on table foods. It's a fruit...just let him try a small amount for a couple days and if no reaction you can give him a proper dose.
Anyway...I'd love to read the article you are referring to. I've never heard that but would like to look into it....
OH and btw....sometimes you really have to look into who wrote the article...simply because if they aren't a supporter of using natural cures they will distort the truth....like saying if you use coloidal silver you'll turn blue....it HAS happened but only in extreme improperly used circumstances, kwim? So maybe this is the same thing....it CAN happen but only if you have xyz also or whatever. Anyway...a link to what you've read would be helpful