Earlier quoted context omitted.
Out of curiosity, what use do you make of elderberry syrup?
Doctor's orders. I'm immune compromised. Dr says it's as effective as tamiflu. From my reading, elderberry doesn't prevent infections, but it does minimize the symptoms, which matches my experience.
>Although some preliminary research indicates that elderberry may relieve flu symptoms, the evidence is not strong enough to support its use for this purpose.
You may want to find a new doctor.