There was talk early on that elderberry could contribute to cytokine storm. Not sure how "sound" that is.
There is a lot of information out there on elderberry and the cytokine storm.
A lot of differing opinions.
I often bring it up when someone mentions they take elderberry to make them aware of the issue so they can research it. They then can decide for themselves what they believe
I decided to do what someone here said she was doing.
Take it until you might have an issue then stop
So once that tell tale sign of scratchy throat appears I am going to be safe rather sorry and quit taking it.
I am much more cautious on cytokine storm issues since I could have some weird genetic quirk as a healthy family member succumbed to it.
people just have to be aware of issues, do their research, and decide what is best for them