I have been doing a little digging to locate information that might help stave off H5N1 and other diseases while our Governments try to find their
collective butts. I have found some information on the Cranberry and cranberry juice that appears to have promise.
Whyfiles.org

Could cranberry juice also protect cells from viruses?
Apparently so, according to research just reported by Patrice Cohen and Steven Lipson of St. Francis College (Brooklyn, N.Y.). When the researchers
bathed animal cells in the red juice (we'll call it juice, but it's actually cranberry juice cocktail, straight from the supermarket!), virtually
none of the cells got infected by reoviruses or rotaviruses, two common causes of diarrhea.

Cranberryinstitute.org

Viruses cause 30 to 40 percent of infectious diarrhea cases in the United
States and viral gastroenteritis is the second most common illness, after
upper respiratory infections. Rotaviruses cause enteric disease with
symptoms characterized by diarrhea, vomiting, abdominal discomfort and
fever. The virus affects mainly infants and young children and is responsible
for 50 percent of hospitalizations of children with diarrhea. The naturally-
occurring anti-viral components of cranberry juice may be useful in
preventing or treating these intestinal viral infections.

MayoClinic
H5N1
Is it possible that the properties discovered so-far could be extended to other diseases?
Could this be a possible hedge during the pandemic?
Only time will tell … in the meantime … to your heath!